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SERVICE MANUAL

Color ink jet printer

EPSON Stylus PHOTO 890/1280/1290
Stylus PHOTO 890

Stylus PHOTO 1290/1280

®
SEIJ00025

Notice
All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic,
mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would
greatly appreciate being informed of them.
The contents of this manual are subject to change without notice.
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would
greatly appreciate being informed of them.
The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences
thereof.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
General Notice:

Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their
respective owners. EPSON disclaims any and all rights in those marks.

PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.
DANGER

Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing
procedures preceded by DANGER Headings.

WARNING

Signals a precaution which, if ignored, could result in damage to equipment.

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

DANGER
1.

ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.

NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS
TECHNICIANS IN THEIR LINE OF WORK.

WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN
THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURIER FROM METAL PARTS WITH SHARP EDGES.

WARNING
1.

REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON
PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT
BOARDS AND/OR INDIVIDUAL CHIPS.

IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN
ACCESSING INTERNAL COMPONENTS.

DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND SOURCE IC OR
OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY COULD CAUSE DAMAGE TO THE EPSON PRODUCT, OR COULD VOID THE
WARRANTY OFFERED BY EPSON.

PREFACE
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON Stylus PHOTO 890/1280/
1290. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the
preceding page. The chapters are organized as follows:

CHAPTER 1. PRODUCT DESCRIPTIONS
Provides a general overview and specifications of the product.

CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of electrical and mechanical operations of the product.

CHAPTER 3. TROUBLESHOOTING
Provides the step-by-step procedures for troubleshooting.

CHAPTER 4. DISASSEMBLY AND ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling the
product.

CHAPTER 5. ADJUSTMENTS
Provides Epson-approved methods for adjustment.

CHAPTER 6. MAINTENANCE
Provides preventive maintenance procedures and the lists of Epson-approved
lubricants and adhesives required for servicing the product.

APPENDIX
Provides the following additional information for reference:
• EEPROM Address Map
• Connector Pin Assignments
• Component Layout
• Exploded Diagrams
• Electrical Board Circuit Diagrams

Symbols Used in this Manual
Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present
during a procedure or an action. Be aware of all symbols when they are used, and always read NOTE, CAUTION, or WARNING messages.
A D J U S T M E N T
R E Q U IR E D

C A U T IO N

C H E C K
P O IN T

W A R N IN G

Indicates an operating or maintenance procedure, practice or condition that is necessary to keep the product’s quality.

Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or
destruction of, equipment.
May indicate an operating or maintenance procedure, practice or condition that is necessary to accomplish a task efficiently. It may also
provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.
Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.

Revision Status
Revision

Issued Date

November 16, 2000

First Release

December 27, 2000

Revision:
• page -78: A warning message for static electricity added.
• page -79: Caution messages for torque and ink tube position added
• page -90& page -92: Caution messages for ink tube installation added.
• page -121: PG adjustment tool added.

February 8, 2001

June 4,2002

Description

Revision:
• All chapters: Stylus PHOTO 1280(for EAI) added.
• page -68: Misdescription for Maintenance Request Error corrected.
• page -128: Stylus PHOTO 1280(for EAI) added to Destination in the adjustment program.
• page -182: C393 MAIN-C Board circuit diagram added.
Revision:
• “Lubrication” on page -156: The lubrication of Oil O-12 for the Stylus Photo 1280/1290 added.

Table of Contents
Chapter 1 PRODUCT DESCRIPTIONS

Chapter 2 OPERATING PRINCIPLES

1.1 Overview ............................................................................................................ 11
1.1.1 Features ...................................................................................................... 11
1.1.2 Accessories, Consumable Products, and Options ...................................... 12

2.1 Overview ............................................................................................................
2.1.1 Printhead Mechanism ................................................................................
2.1.2 Carriage Mechanism ..................................................................................
2.1.2.1 Carriage Motor (CR Motor) ..............................................................
2.1.2.2 Platen Gap (PG) /Parallelism Adjustment Mechanism .....................
2.1.2.3 Carriage Home Position (HP) Detection ...........................................
2.1.3 Paper Feeding Mechanism .........................................................................
2.1.3.1 CR Lock Mechanism .........................................................................
2.1.4 Paper Loading Mechanism ........................................................................
2.1.4.1 Drive Transmission to the ASF Unit .................................................
2.1.4.2 Paper Loading Operation ..................................................................
2.1.4.3 Pump Mechanism ..............................................................................
2.1.4.4 Capping Mechanism ..........................................................................

34
35
36
36
37
37
37
39
40
40
41
42
43

2.2 Electrical Circuit Operating Principles ..........................................................
2.2.1 C378PSB/PSE Board .................................................................................
2.2.1.1 Electrical Circuit ...............................................................................
2.2.1.2 Protection Circuits .............................................................................
2.2.1.3 Power Supply Control Function ........................................................
2.2.1.4 Energy Save Mode ............................................................................
2.2.2 C393MAIN Board Circuit Operation Principles .......................................
2.2.2.1 Printhead Driver Circuit ....................................................................
2.2.2.2 RTC (Real Time Clock)/ Reset/ EEPROM Circuit ...........................
2.2.2.3 Motor Driver Circuit .........................................................................
2.2.2.4 ASF/Pump Motor Driver Circuit .......................................................
2.2.2.5 Sensor Circuit ....................................................................................

44
44
44
46
46
46
47
50
51
52
57
58

1.2 Basic Specifications ..........................................................................................
1.2.1 Printing Specification ................................................................................
1.2.2 Control Code ..............................................................................................
1.2.3 Paper Feeding ............................................................................................
1.2.4 Input Data Buffer .......................................................................................
1.2.5 Paper Specifications ...................................................................................
1.2.5.1 EPSON Special Media ......................................................................
1.2.6 Printing Area ..............................................................................................
1.2.6.1 Cut Sheet ...........................................................................................
1.2.6.2 Envelopes ..........................................................................................
1.2.7 Adjust Lever ..............................................................................................
1.2.8 Ink Cartridge ..............................................................................................
1.2.9 Electric Specification .................................................................................
1.2.10 Reliability ................................................................................................
1.2.11 Environmental Condition .........................................................................

14
14
14
14
14
15
15
17
17
18
18
19
20
20
21

1.3 Interface ............................................................................................................. 22
1.3.1 Parallel Interface (Forward Channel) ........................................................ 22
1.3.2 Parallel Interface (Reserve Channel) ......................................................... 25
1.3.3 USB Interface ............................................................................................ 26
1.3.4 Prevention of Data Transfer Time-out ....................................................... 27
1.3.5 Interface Selection ..................................................................................... 27
1.3.6 IEEE1284.4 Protocol ................................................................................. 27
1.4 Operations .........................................................................................................
1.4.1 Buttons .......................................................................................................
1.4.2 Indicators ...................................................................................................
1.4.3 Panel Functions ..........................................................................................
1.4.4 Special Setting Mode .................................................................................
1.4.5 Printer Initialization ...................................................................................
1.4.6 Initialization Value ....................................................................................

28
28
28
28
29
30
30

1.5 Dimension .......................................................................................................... 31

Chapter 3 TROUBLESHOOTING
3.1 Overview ............................................................................................................
3.1.1 Self-Diagnostic Function ...........................................................................
3.1.1.1 Troubleshooting with LED Error Indicators .....................................
3.1.1.2 Error Conditions ................................................................................
3.1.1.3 Remedies for Paper Out Error ...........................................................

61
62
62
62
65

3.1.1.4 Remedies for the Paper Jam Error .....................................................
3.1.1.5 Remedies for No Ink Cartridge Error/Ink Cartridge Problem ...........
3.1.1.6 Remedies for Maintenance Request Error .........................................
3.1.1.7 Remedies for Fatal Error ...................................................................
3.1.2 Isolating the Faulty Part on the Power Supply Board ................................
3.1.3 Isolating the Faulty Part according to the Phenomenon ............................

67
67
68
69
72
72

5.2.1 Parallelism Adjustment ............................................................................
5.2.1.1 Using PG Adjustment Tool .............................................................
5.2.1.2 Using Thickness Gauge ...................................................................
5.2.2 Backlash Adjsutment ............................................................................
5.2.3 Adjustment Program Feature ...................................................................
5.2.3.1 How to Install the Program .............................................................
5.2.3.2 How to Uninstall the Program .........................................................
5.2.4 Starting the Service Program ...................................................................
5.2.4.1 Adjusting Program Initial Setting ...................................................

121
121
124
125
127
128
128
128
128

78
78
79
80
81

5.3 Individual Adjustment Program ...................................................................
5.3.1 Head ID ....................................................................................................
5.3.1.1 Head ID Input ...............................................................................
5.3.1.2 Head ID Check ................................................................................
5.3.2 Bi-Directional Adjustment ....................................................................
5.3.2.1 Input Bi-D Adjustment Value ......................................................
5.3.2.2 Check Present Adjustment Data ......................................................
5.3.3 Input/Check USB ID ...............................................................................
5.3.3.1 Input USB ID ..................................................................................
5.3.3.2 Check USB ID .................................................................................
5.3.4 Maintenance .............................................................................................
5.3.4.1 Head Cleaning Operation ................................................................
5.3.5 Ink Charge Operation .............................................................................
5.3.6 Refurbishment for DOA ..........................................................................
5.3.7 Protection Counter ...................................................................................
5.3.7.1 Check the Present Counter Value ....................................................
5.3.7.2 Clear the Protection Counter Value ................................................
5.3.8 Appendix Items ........................................................................................
5.3.8.1 CSIC Information .........................................................................
5.3.8.2 EEPROM Data Check ...................................................................
5.3.8.3 Changing EEPROM Data ..............................................................
5.3.9 A4 Check Pattern Printing .......................................................................

130
130
130
132
133
135
136
137
138
138
139
139
140
141
143
143
143
145
145
146
146
147

5.4 Sequential Repair Adjustment Program ......................................................
5.4.1 Function ...................................................................................................
5.4.1.1 How to start the program .................................................................
5.4.1.2 Printhead Removal ..........................................................................
5.4.1.3 Printhead Replacement ....................................................................
5.4.1.4 Main Board Replacement ................................................................
5.4.1.5 Carriage Unit Replacement/ Removal .............................................
5.4.1.6 CR Motor Replacement ...................................................................
5.4.1.7 Printer Mechanism Replacement ....................................................

149
149
149
150
151
152
152
152
152

Chapter 4 DISASSEMBLY AND ASSEMBLY
4.1 Overview ............................................................................................................
4.1.1 Precaution for Disassembling the Printer ..................................................
4.1.2 Tools ..........................................................................................................
4.1.3 Specifications for Screws ..........................................................................
4.1.4 Service Checks After Repair .....................................................................

4.2 Disassembly Procedures ................................................................................... 82
4.2.1 HOUSING Removal .................................................................................. 83
4.2.2 Circuit Board Assembly Removal ............................................................. 84
4.2.3 Panel Unit Removal ................................................................................... 86
4.2.4 Printhead Unit Removal ............................................................................ 88
4.2.5 TRAY, ABSORBER ASSEMBLY Removal ............................................ 89
4.2.6 Ink Unit Removal ...................................................................................... 91
4.2.7 MOTOR ASSEMBLY, CR Removal ........................................................ 94
4.2.8 MOTOR ASSEMBLY, ASF Removal ...................................................... 95
4.2.9 DE Unit Removal ...................................................................................... 96
4.2.10 ASF Unit Removal .................................................................................. 99
4.2.10.1 SHAFT, ROLLER, LD Removal .................................................. 101
4.2.10.2 ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal ................. 106
4.2.11 Carriage Unit Removal .......................................................................... 107
4.2.12 BOARD ASSEMBLY, ENCODER Removal ....................................... 109
4.2.13 ROLLER, PF Removal .......................................................................... 110
4.2.13.1 SCALE, PF Installation ................................................................. 113
4.2.14 MOTOR ASSEMBLY, PF Removal ..................................................... 116
4.2.15 PE Sensor Unit Removal ....................................................................... 117

Chapter 5 ADJUSTMENT
5.1 Overview .......................................................................................................... 119
5.1.1 Adjustment Items ..................................................................................... 119
5.1.2 Adjustment Tools ..................................................................................... 120
5.2 Adjustment ...................................................................................................... 121

5.4.1.8 Waste Ink Pad Replacement ............................................................ 152
5.4.1.9 Clogged Nozzle Recovery ............................................................... 152

Chapter 6 MAINTENANCE
6.1 Overview ..........................................................................................................
6.1.1 Cleaning ...................................................................................................
6.1.2 Service Maintenance ................................................................................
6.1.2.1 Head Cleaning .................................................................................
6.1.2.2 Maintenance Request Error Clear ...................................................
6.1.3 Lubrication ...............................................................................................

155
155
155
155
155
156

Chapter 7 APPENDIX
7.1 Connector Summary ......................................................................................
7.1.1 Connector Alignment ...............................................................................
7.1.2 Connector Pin Assignment ......................................................................
7.1.3 EEPROM Address Map ...........................................................................

166
166
166
169

7.2 Circuit Board Component Layout ................................................................ 174
7.3 Electrical Circuit Board Diagrams ............................................................... 179
7.4 Exploded Diagrams ........................................................................................ 186
7.4.1 Exploded Diagrams for Stylus PHOTO 890 ........................................... 186
7.4.2 Exploded Diagrams for Stylus PHOTO 1280/1290 ................................ 191
7.5 Parts List ......................................................................................................... 196
7.5.1 Parts List for Stylus PHOTO 890 ............................................................ 196
7.5.2 Parts List for Stylus PHOTO 1280/1290 ................................................. 201

CHAPTER

PRODUCT DESCRIPTIONS

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.1 Overview
The EPSON Stylus PHOTO 890 and EPSON Stylus PHOTO 1280/1290 are designed
for both home use and office use. Stylus PHOTO 1280 is for EAI use only.

1.1.1 Features
The main features of the products are:

High-quality color print (6 colors)

High-speed & image quality bidirectional printing
Photo quality print enabled by photo mach technology
Supports microweave and super microweave
Prints at high resolution (2880x 720 dpi)

Two built-in interfaces
Bi-directional parallel interface (IEEE-1284 level 1 device)
USB I/F

Figure 1-1. Stylus PHOTO 890

Small size requiring less space.
Used only in Windows or Macintosh environment.
Built-in ASF (auto sheet feeder) supports multiple sizes of paper.
Stylus PHOTO 890: From postcard size up to A4
Stylus PHOTO 1280/1290: From postcard size up to A3 (W)
CSIC keeps track of ink life information on the ink cartridge side.

Figure 1-2. Stylus PHOTO 1280/1290

PRODUCT DESCRIPTIONS

Overview

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.1.2 Accessories, Consumable Products, and Options
Table 1-1. Consumable Products (continued)

ACCESSORIES

Product Name

Users Guide
Ink cartridge (Black and color)
CD-ROM (Printer driver and utilities)
CONSUMABLE PRODUCTS
NOTE: The product codes of the ink cartridges may vary by location.
NOTE: The availability of special media varies by location.
NOTE: The products with an asterisk (*)are only available for Stylus PHOTO
1280/1290.

Table 1-1. Consumable Products
Product Name

Code

Black ink cartridge

T007

Color ink cartridge (Stylus PHOTO 890)

T008

Color ink cartridge (Stylus PHOTO 1280/1290)

T009

EPSON Premium Ink Jet Plain Paper (A4)

S041214

EPSON 360 dpi Ink Jet Paper (A4)
EPSON 360 dpi Ink Jet Paper (Letter)
EPSON 360 dpi Ink Jet Paper (A3)*
EPSON 360 dpi Ink Jet Paper (Super A3/B)*

S041059/S041025
S041060/S041028
S041065/S041046
S041066/S041047

EPSON Iron-On Cool Peel Transfer Paper (A4)
EPSON Iron-On Cool Peel Transfer Paper (Letter)
EPSON Iron-On Cool Peel Transfer Paper (A3)*

S041154
S041153/S041155
S041238

EPSON Photo Quality Ink Jet Paper (A4)
EPSON Photo Quality Ink Jet Paper (Letter)
EPSON Photo Quality Ink Jet Paper (Legal)
EPSON Photo Quality Ink Jet Paper (A3)*
EPSON Photo Quality Ink Jet Paper (Super A3/B)*
EPSON Photo Quality Ink Jet Paper (B)*

S041061/S041026
S041062/S041029
S041067/S041048
S041068/S041045
S041069/S041043
S041070/S041044

PRODUCT DESCRIPTIONS

Code

EPSON Photo Quality Ink Jet Cards (A6)
EPSON Photo Quality Ink Jet Cards(5x8”)
EPSON Photo Quality Ink Jet Cards(8x10”)

S041054
S041121
S041122

EPSON Photo Quality Self Adhesive Sheet (A4)

S041106

EPSON Ink Jet Note Cards A6 (with envelops)

S041147

EPSON Ink Jet Greeting Cards 5x8” (with envelopes)
EPSON Ink Jet Greeting Cards 8x10” (with envelopes)

S041148
S041149

EPSON Matte Paper-Heavyweight (A4)

S041256/S041258/
S041259
S041257
S041260/S041261/
S041262
S041263/S041264/
S041265

EPSON Matte Paper-Heavyweight (Letter)
EPSON Matte Paper-Heavyweight (A3)*
EPSON Matte Paper-Heavyweight (Super A3/Super B)*
EPSON Photo Paper (A4)
EPSON Photo Paper (Letter)
EPSON Photo Paper (A3)*
EPSON Photo Paper (Super A3/Super B)*
EPSON Photo Paper (B)*
EPSON Photo Paper (4x6”)
EPSON Photo Paper (100 x 150 mm)
EPSON Photo Paper (200 x 300 mm)
EPSON Photo Paper (89 mmx 7M)
EPSON Photo Paper (100 mm x 8M)
EPSON Photo Paper (210 mm x 10M)
EPSON Photo Paper (329 mm x 10M)*

S041140
S041141
S041142
S041143
S041156
S041134
S041255
S041254
S041281
S041279
S041280
S041233

EPSON Panoramic Photo Paper (210 x 594 mm)

S041145

EPSON Photo Paper Cards (A4)

S041177

Overview

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 1-1. Consumable Products (continued)
Product Name

Code

Photo Quality Glossy Film (A4)
Photo Quality Glossy Film (Letter)
Photo Quality Glossy Film (A3)*
Photo Quality Glossy Film (Super A3/B)*
Photo Quality Glossy Film (B)*
Photo Quality Glossy Film (A6)

S041071
S041072
S041073
S041074
S041075
S041107

EPSON Photo Stickers 16 (A6)
EPSON Photo Stickers 4 (A6)

S041144
S041176

EPSON Ink Jet Transparencies (A4)
EPSON Ink Jet Transparencies (Letter)

S041063
S041064

EPSON Premium Glossy Photo Paper (A4)
EPSON Premium Glossy Photo Paper (Letter)
EPSON Premium Glossy Photo Paper (A3)*
EPSON Premium Glossy Photo Paper (B)*
EPSON Premium Glossy Photo Paper (Super A3/ SuperB)*
EPSON Ink Jet Back Light Film (A3)*

S041287/S041297
S041286
S041288
S041290
S041289

S041131

OPTIONS
Table 1-2. Options
Product Name

Code

Parallel Interface cable (shielded)

C83602*

USB I/F Interface cable (shielded)

C83623*

Roll Paper Holder

C81106*

* The asterisks are substitutions for the last digits of the product name, which may vary by
country.

PRODUCT DESCRIPTIONS

Overview

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.2 Basic Specifications

* The value is the speed of normal-dot printing.

Raster Graphic Mode
Table 1-4. Raster Graphics Mode

1.2.1 Printing Specification
Print Method:

On demand ink jet

Model

Horizontal
Resolution

Printable
Area

Available Dot

CR Speed

180 dpi

209.8mm/
8.26”

1488

23.8/19 IPS

360 dpi

209.8mm/
8.26”

2976

23.8/19 IPS

720 dpi

209.8mm/
8.26”

5952

19 IPS

180 dpi

322.986mm/
12.716”

2289

23.8/19 IPS

360 dpi

322.986mm/
12.716”

4578

23.8/19 IPS

720 dpi

322.986mm/
12.716”

9156

19 IPS

Nozzle Configuration
Monochrome:

48 nozzles (120 dpi)

Color:

48 nozzles x 5 (Cyan, Magenta, Yellow, Light cyan,
Light magenta) (120 dpi)

Stylus PHOTO 890

The following figure shows nozzle configuration viewed from the back of the
printhead:

Stylus PHOTO
1280/1290

1.2.2 Control Code
ESC/P Raster command
EPSON Remote command

Figure 1-3. Nozzle Configuration
Print Direction

1.2.3 Paper Feeding

Bi-direction with logic seeking

Print Speed & Printable Columns
Character Mode
Table 1-3. Character Mode
Model

Feeding method:

Friction feed with ASF

Paper Path:

Cut-sheet ASF (top entry, front out)

Feed Speed:

110mm/sec (10.16mm feed)
152.4mm(6.0inch)/sec (Fast, continues feed)

Character Pitch

Printable Columns

LQ Speed

Stylus PHOTO 890

10 CPI (Pica)

238CPS*

1.2.4 Input Data Buffer

Stylus PHOTO 1280/
1290

10 CPI (Pica)

127

238CPS*

256 KB

PRODUCT DESCRIPTIONS

Basic Specifications

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.2.5 Paper Specifications

ENVELOPE

The asterisk(*) indicates Stylus PHOTO 1280/1290 use only.

Size (Width x Length):
#10
DL
C6
220 x 132

CUT SHEET
Size:

See the table below:

Table 1-5. Paper Specifications - Cut Sheet
Size

Specifications (Width x Length)

241.3mm (9 1/2”) x 104.8mm(4 1/8”)
220mm (8.7”) x 110mm (4.3”)
162mm (6.4”) x 114mm (4.5”)
220mm x 132 mm

Thickness:

0.16mm (0.006”) - 0.52mm (0.02”)

Weight:

45g/m2 (12Ib.) - 75g/m2 (20Ib.)

Quality:

Bond paper, PPC, Air mail

A3*

297mm (11.7”) x 420mm (16.5”)

210 mm (8.3”) x 297 mm (11.7”)

148 mm x 210 mm

148mm x 105 mm

1.2.5.1 EPSON Special Media

279 mm x 432

EPSON offers specifically- designed media for ink jet printers.

Letter
Half Letter
Legal
Executive

Envelope printing is only available at normal temperature.
Keep the longer side of the envelope horizontally at setting.

216 mm (8.5”) x 279 mm (11.0”)
139.7 mm x 215.9 mm
216 mm (8.5”) x 356 mm (14.0”)

PHOTO QUALITY INK JET PAPER
Size (Width x Length):
A3+*
A3 *
A4
A6
B*
Letter
Legal
5” x 8”
8” x 10”

184.2 mm (7.25”) x 266.7 mm (10.5”)

178 mm x 127 mm

127 mm x 127 mm

5” x 8”

127 mm x 203 mm

8” x 10”

203 mm x 254 mm

Double Side A4

210 mm x 297 mm

User Defined

Note1:
Note 2:

329mm x 483mm
297mm x 420mm
210mm x 297mm
105mm x 148mm
210mm x 297mm
216mm x 279mm
216mm x 356mm
127mm x 203mm
203mm x 254mm

89 to 241.3 mm x 89 to 1117.6 mm

Quality:

Plain paper, Bond paper

Thickness:

0.08mm- 0.11mm (0.003”- 0.004”)
(Normal paper)

Weight:

64g/m2 - 90g/m2 (55kg-78kg, 17lb.- 24Ib.)

PRODUCT DESCRIPTIONS

Basic Specifications

EPSON Stylus PHOTO 890/1280/1290

Revision C
200 x 300mm
Roll Paper

360 DPI INK JET PAPER
Size (Width x Length):
A3+*
A3 *
A4
A6
Letter

329mm x 483mm
297mm x 420mm
210mm x 297mm
105mm x 148mm
216mm x 279mm

216mm x 338mm(cut-line)
(89mm x 7m, 100mm x 8m,
210mm x 10m, 329mm x 10m*)

PHOTO QUALITY ADHESIVE SHEET
Size (Width x Length):
A4
Letter

210mm x 297mm
216mm x 279mm

INK JET TRANSPARENCIES
IRON-ON COOL PEEL TRANSFER PAPER

Size (Width x Length):
A4
Letter

210mm x 297mm
216mm x 279mm

Size (Width x Length):
A3 *
A4
Letter

PHOTO QUALITY GLOSSY FILM
Size (Width x Length):
A3+*
A3 *
A4
A6
B*
Letter

329mm x 483mm
297mm x 420mm
210mm x 297mm
105mm x 148mm
210mm x 297mm
216mm x 279mm

PHOTO PAPER

PHOTO STICKERS
Size (Width x Length):
A6
A6

105mm x 148mm /16
105mm x 148mm /4

MATTE PAPER-HEAVYWEIGHT
Size (Width x Length):
A3+*
A3 *
A4
B*
Letter
100mm x 150mm
Roll Paper

Size (width x length):
+A3*
329mm x 483mm
A3 *
297mm x 420mm
A4
210mm x 297mm
A6*
105mm x 148mm
B*
210mm x 297mm
Letter
216mm x 279mm
Photo Paper Card 2
175.4mm x 113.6mm (cut-line)
Panoramic Photo Paper
210mm x 594mm
152.4mm (6“) x 101.6mm (4“)(no cut-line)
100mm x 150mm

PRODUCT DESCRIPTIONS

297mm x 420mm
210mm x 297mm
216mm x 279mm

Basic Specifications

329mm x 483mm
297mm x 420mm
210mm x 297mm
210mm x 297mm
216mm x 279mm
(89mm x 7m, 100mm x 8m,
210mm x 10m, 329mm x 10m*)

EPSON Stylus PHOTO 890/1280/1290

Revision C

PREMIUM GLOSSY PHOTO PAPER

1.2.6 Printing Area

Size (Width x Length):

1.2.6.1 Cut Sheet

+A3*
A3 *
A4
B*
Letter
Roll Paper

329mm x 483mm
297mm x 420mm
210mm x 297mm
210mm x 297mm
216mm x 279mm
(89mm x 7m, 100mm x 8m,
127mm x 8m*,210mm x 10m,
329mm x 10m*)

See the figure below and the following tables for the printing area for Stylus PHOTO
890/Stylus PHOTO 1280/1290.
PW
LM

INK JET BACK LIGHT FILM

Size (Width x Length):
A3*

297mm x 420mm

Printable Area

Figure 1-4. Printable Area for Cut Sheet

PRODUCT DESCRIPTIONS

Basic Specifications

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.2.6.2 Envelopes

Table 1-6. Printing Area
Left Margin
(min.)

Right Margin
(min.)

Top Margin
(min.)

A3*

3 mm
(0.12”)*2

3 mm (0.12”)*2

14 mm (0.54”) /
3mm (0.12”) *1*2

A3+*

3 mm
(0.12”)*2

3 mm (0.12”)*2

14 mm (0.54”) /
3mm (0.12”) *1*2

3 mm
(0.12”)*2

3 mm (0.12”)*2

14 mm (0.54”) /
3mm (0.12”) *1*2

Letter

3 mm
(0.12”)*2

3 mm (0.12”)*2

14 mm (0.54”) /
3mm (0.12”) *1*2

3 mm
(0.12”)*2

3 mm (0.12”)*2

14 mm (0.54”) /
3mm (0.12”) *1*2

Legal

3 mm
(0.12”)*2

3 mm (0.12”)*2

14 mm (0.54”) /
3mm (0.12”) *1*2

Statement

3 mm
(0.12”)*2

3 mm (0.12”)*2

14 mm (0.54”) /
3mm (0.12”) *1*2

Exclusive

3 mm
(0.12”)*2

3 mm (0.12”)*2

14 mm (0.54”) /
3mm (0.12”) *1*2

Paper Size

Bottom Margin
(min.)

Printable Area

Figure 1-5. Printable Area for Envelopes

Stylus PHOTO 1290 only.
margin can be reduced to 3mm when paper dimension is
defined by using command, otherwise it remains 14mm.
As for an area between 3mm and 14mm margin, print quality may
decline.
*2: Zero mm can be set by special command.

Table 1-7. Envelope Margin

*1:Bottom

Size

Left Margin
(min.)

Right Margin
(min.)

Top Margin
(min.)

Bottom Margin
(min.)

#10

3 mm (0.12”)

28 mm (1.10”)

3 mm (0.12”)

14 mm (0.55”)

3 mm (0.12”)

7 mm (0.28”)

3 mm (0.12”)

14 mm (0.55”)

3 mm (0.12”)

14 mm (0.55”)

1.2.7 Adjust Lever
Set the adjust lever according to the type of paper as shown in the following table.

Table 1-8. Adjust Lever Setting Position
Paper

PRODUCT DESCRIPTIONS

Setting Position

Gap

Cut sheet, OHP Sheet, Label,
Postcard

Front (0)

0 mm

Envelope

Rear (+)

+0.9 mm

Basic Specifications

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.2.8 Ink Cartridge

COLOR INK CARTRIDGE

BLACK INK CARTRIDGE

Note some of the color ink specifications for the Stylus PHOTO 890 and Stylus
PHOTO 1280/1290 are different as indicated.

The black ink cartridge specifications for Stylus PHOTO 890 and Stylus PHOTO
1280/1290 are common.

Type:

Exclusive Cartridge

Color:

Magenta, Cyan, Yellow, Light Cyan,
Light Magenta

Type:

Exclusive Cartridge

Color:

Black

Print Capacity:

540 pages/A4
(ISO/IEC 10561 Letter Pattern at 360 dpi)

Ink Life:

2 years from the indicated date of production

Print Capacity:

Storage Temperature
Packed (in transit): -30 to 60 oC (within a month at 40 oC, within 120
hours at 60 oC)

Packed (storage):
Installed:
Dimension:

-30 to 40 oC (within a month at 40 oC)
-20

to 40

(within a month at 40

oC)

20.1 mm (W) x 66.85 mm (D) x 38.5 mm (H)

Stylus PHOTO 890

220 pages / A4 (360 dpi, 5% duty each color)

Stylus PHOTO 1280/1290330 pages / A4 (360 dpi, 5% duty each color)

Ink Life:

2 years from the indicated date of production

Storage Temperature
Packed (in transit):

-30 to 60 oC (within a month at 40 oC, within 120 hours
at 60 oC)

Packed (storage):

-30 to 40 oC (within a month at 40 oC)

Installed:

-20 oC to 40 oC (within a month at 40 oC)

Dimension:
Stylus PHOTO 890

49.1 mm (W) x 66.85 mm (D) x 38.5 mm (H)

Stylus PHOTO 1280/129049.1 mm (W) x 84.05 mm (D) x 41.8mm (H)

PRODUCT DESCRIPTIONS

Basic Specifications

EPSON Stylus PHOTO 890/1280/1290

1.2.9 Electric Specification

Revision C

1.2.10 Reliability
Total Print Volume

Black: 25,000 pages (A4, Letter)
Color: 10,000 pages (A4, Letter)

Printhead Life:

3000 million dots/nozzle

120V VERSION
Rated Voltage:

AC120V

Input Voltage Range:

AC99∼132V

Rated Frequency Range:

50∼ 60Hz

Input Frequency Range:

49.5∼ 60.5Hz

Rated Current:

0.4A(Max0.7A)

Power Consumption:

Approx. 15W (ISO10561 Letter Pattern)
Approx. 3W in standby mode
Energy Star compliant

Insulation Resistance:

10M ohms min.
(between AC line and chassis, DC 500V)

Dielectric Strength:

AC 1000V rms. 1 minute or
AC 1200V rms. 1 second
(between AC line and chassis)

220 ∼ 240V VERSION
Rated Voltage:

AC220V∼240V

Input Voltage Range:

AC198∼264V

Rated Frequency Range:

50∼60Hz

Input Frequency Range:

49.5∼60.5Hz

Rated Current:

0.2 A(Max0.35A)

Power Consumption:

Approx. 15W (ISO10561 Letter Pattern)
Approx. 3W in standby mode
Energy Star compliant

Insulation Resistance:

10M ohms min.
(between AC line and chassis, DC 500V)

Dielectric Strength:

AC 1500V rms. 1 minute
(between AC line and chassis)

PRODUCT DESCRIPTIONS

Basic Specifications

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.2.11 Environmental Condition

RESISTANCE TO SHOCK

TEMPERATURE

Operating:

1G, within 1 ms, X, Y, Z directions

Non-operating:

2G, within 2 ms, X, Y, Z directions*1

Operating:

10 to 35°C*2

Non-Operating:

-20 to 60°C*1
Within 1 month at 40°C /120 hours at 60°C

*1:

In a shipment container.

RESISTANCE TO VIBRATION

*1:

In a shipment container.

*2:

Refer to Figure 1-6 "Temperature/Humidity Range" for condition.

HUMIDITY

Operating:

0.15G

Non-operating:

0.50G*1

*1:

Operating:

20 to 80% RH (without condensation)*2

Not-Operating:

5 to 85% RH (without condensation)*1

In a shipment container.

C A U T IO N

When storing the printer, make sure the printhead is capped.
When transporting the printer, ensure the ink cartridges are
installed in the printer and the printhead is capped.

If the printer power is off with the printhead left uncapped, turn

the printer on with the ink cartridges installed, cap the
printhead, and turn the printer off.
Ink freezes at below -4°C. It will be usable again after keeping it
for about three hours at 25°C.

70
60

Humidity (%) 50
40
30
20

27 30

Temperature (°C)

Figure 1-6. Temperature/Humidity Range
*1:

In a shipment container.

*2:

Refer to Figure 1-6 "Temperature/Humidity Range" for condition.

PRODUCT DESCRIPTIONS

Basic Specifications

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.3 Interface

Table 1-9. Parameters

The EPSON Stylus PHOTO 890/1280/1290 provides USB and parallel interfaces as
standard.

1.3.1 Parallel Interface (Forward Channel)

Parameter

Minimum

Maximum

tsetup

500ns

thold

500ns

tstb

500ns

Transmission Mode:

8 bit parallel, IEEE-1284 compatibility mode

tready

Synchronization:

By STROBE pulse

tbusy

500ns

Handshaking:

By BUSY and ACKNLG signal

tt-out*

120ns

Signal Level:

TTL compatible level

tt-in**

200ns

Adaptable Connector:

57-30360 (amphenol) or equivalent

treply

tack

500ns

10us

tnbusy

tnext

data byte n

DATA

data byte n+1

thold
-STROBE
tsetup

tnext

tstb

* Rise and fall time of every output signal.
** Rise and fall time of every input signal.
*** Typical timing for tack is shown on the following page.

BUSY
tready

tbusy

Table 1-10. Typical Time of Tack

-ACKNLG
treply

tack

tnbusy

Figure 1-7. Data Transmission Timing

PRODUCT DESCRIPTIONS

Interface

Parallel I/F Mode

Typical Time of tack

High Speed

0.5us

Normal Speed

2us

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 1-11.
Signal Level: TTL Compatible (IEEE-1284 level 1 device)
Parameter

Minimum

Maximum

Condition

VOH*

5.5V

VOL*

-0.5V

IOH*

0.32mA

VOH = 2.4V

IOL*

12mA

VOL = 0.4V

50pF

VIH

2.0V

VIL

0.8V

IIH

0.32mA

VIH = 2.0V

IIL

12mA

VIL = 0.8V

50pF

* A low logic level on the Logic H signal is 2.0V or less when the printer is turned off,
and this signal is equal to or exceeding 3.0V when the printer is turned on. The
receiver shall provide an impedance equivalent to 7.5K ohm to ground.

PRODUCT DESCRIPTIONS

Interface

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 1-12. Connector Pin Assignment and Signals
Pin No.

Signal Name

Return
GND Pin

In/Out

-STROBE

The strobe pulse. Read-in of data is performed at the falling edge of this pulse.

2-9

DATA0-DATA7

20-27

The DATA0 through DATA7 signals represent data bits 0 to 7, respectively.
Each signal is at high level when data is logical 1 and low level when data is logical 0.

-ACKNLG

Out

This signal is a negative pulse indicating that the printer can accept data again.

BUSY

Out

A high signal indicates that the printer cannot receive data.

Out

A high signal indicates paper-out error.

SLCT

Out

Always at high level when the printer is turned on.

-AFXT

Not used.

Chassis GND

Logic H

Out

-INIT

-ERROR

Out

A low signal indicates printer error condition.

Out

Pulled up to +5V via 3.3K ohm resister.

-SLIN

Not used.

16,33
19-30

GND

Signal GND

15,34

Not connected.

Functional Description

Pulled up to +5V via 3.9K ohm resister.
The falling edge of a negative pulse or a low signal on this line causes the printer to initialize. Minimum
50us pulse is necessary.

NOTE: In/Out refers to the direction of signal flow seen from the printer side.

PRODUCT DESCRIPTIONS

Interface

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.3.2 Parallel Interface (Reserve Channel)
Transmission Mode:

IEEE-1284 nibble mode

Handshaking:

Refer to the IEEE-1284 specification

Adaptable Connector

See forward channel.

Data Trans. Timing:

Refer to the IEEE-1284 specification

Synchronization:

Refer to the IEEE-1284 specification

Signal Level:

IEEE-1284 level 1 device (See forward channel.)

Table 1-13. Connector Pin Assignment and Signals
Pin No.

Signal Name

Return
GND Pin

In/Out

HostClk

Host clock signal.

2-9

DATA0-DATA7

20-27

The DATA0 through DATA7 signals represent data bits 0 to 7, respectively. Each signal is
at high level when data is logical 1 and low level when data is logical 0. These signals are
used to transfer the 1284 extensibility request values to the printer.

PtrClk

Out

Printer clock signal.

PtrBusy / DataBit-3,7

Out

Printer busy signal and reverse channel transfer data bit 3 or 7.

AckDataReq / DataBit-2,6

Out

Acknowledge data request signal and reverse channel transfer data bit 2 or 6.

Xflag / DataBit-1,5

Out

X-flag signal and reverse channel transfer data bit 1 or 5.

HostBusy

Host busy signal.

-INIT

Not used.

-DataAvail / DataBit-0,4

Out

1284-Active

Logic-H

Out

Pulled up to +5V via 3.9K ohm resistor.

+5V

Out

Pulled up to +5V via 3.3K ohm resistor.

Chassis GND

16,33, 19-30

GND

Signal GND

15,34

Not connected

Functional Description

Data available signal and reverse channel transfer data bit 0 or 4.
1284 active signal.

NOTE: In/Out refers to the direction of signal flow from the printer’s point of view.

Extensibility Request:
The printer responds affirmatively when the extensibility request values are 00H
or 04H, which means:

PRODUCT DESCRIPTIONS

Interface

00H:

Request Nibble Mode Reverse Channel Transfer.

04H:

Request Device ID;
Return Data Using Nibble Mode Rev Channel Transfer.

EPSON Stylus PHOTO 890/1280/1290
Device ID:
The printer sends the following device ID string when requested.

Revision C

1.3.3 USB Interface
Standard:

Based on:
“Universal Serial Bus Specifications Rev. 1.1”
“Universal Serial Bus Device Class Definition for
Printing Devices Version 1.1”

Bit rate:

12Mbps (Full Speed Device)

MDL: Stylus[SP]Photo[SP]890
/Stylus[SP]Photo[SP]1290

Data encoding:

NRZI

Adaptable connector:

USB Series B

CLS: PRINTER

Recommended cable length:2 meters

When IEEE1284.4 is enabled,
<00H><5AH>*1/ <00H><5CH>*2
MFG: EPSON
CMD: ESCPL2,BDC,D4

DES: EPSONStylus[SP]Photo[SP]890
/EPSONStylus[SP]Photo[SP]1290

When IEEE1284.4 is enabled,
<00H><57H>*1/

Table 1-14. Connector Pin Assignment and Signals

<00H> <59H>*2

MFG: EPSON

Pin No.

Signal Name

I/O

VCC

-Data

Bi-D

Data

+Data

Bi-D

Data, pull up to +3.3 V via 1.5K
ohm resistor.

Ground

CMD: ESCPL2,BDC,D4
MDL: Stylus[SP]Photo[SP]890
/Stylus[SP]Photo[SP]1290
CLS: PRINTER

Function Description
Cable power. Max. power
consumption is 2mA.

Cable ground

DES: EPSONStylus[SP]Photo[SP]890
/EPSONStylus[SP]Photo[SP]1290
*1:

Stylus PHOTO 890 only

*2:

Stylus PHOTO 1280/1290 only

Pin #2

Pin #1

Pin #3

Pin #4

NOTE 1:[00H] denotes a hexadecimal value of zero.
NOTE 2:MDL value depends on the EEPROM setting.
NOTE 3:CMD value depends on the IEEE1284.4 setting.

Figure 1-8. USB Pin Assignment

PRODUCT DESCRIPTIONS

Interface

EPSON Stylus PHOTO 890/1280/1290

Revision C
On

1.3.4 Prevention of Data Transfer Time-out
Generally, hosts abandon data transfer to peripherals when the peripheral is in the busy
state for dozens of seconds continuously. To prevent this kind of time-out, the printer
receives data very slowly, several bytes per minute, even if the printer is in the busy
state. The slowdown starts when the remaining input buffer becomes several hundreds
of bytes, and the printer finally gets into the busy state continuously when the input
buffer is full.
USB and IEEE1284.4 on the parallel interface do not require such function.

An initial state is IEEE1284.4 communication and data that received it by the time
it is able to take synchronization by magic string (1284.4 synchronous commands)
is discarded.

Off
An initial state is compatible interface and never starts IEEE1284.4
communication even if magic strings (1284.4 synchronous commands) are
received.

1.3.5 Interface Selection
The printer has two built-in interfaces: the USB and parallel interface.
These interfaces are selected automatically.

Automatic Selection
In this automatic interface selection mode, the printer is initialized to the idle state
while scanning which interface receives data when it is powered on. Then the
interface which received data first is selected. When the host stops data transfer
and the printer is in the stand-by state for seconds, the printer is returned to the idle
state. As long as the host sends data or the printer interface is in the busy state, the
selected interface is let as it is.

Interface State and Interface Selection
When the parallel interface is not selected, the interface gets into the busy state.
When the printer is initialized or returned to the idle state, the parallel interface
gets into the ready state. Note that the interrupt signal such as the -INIT signal on
the parallel interface is not effective while that interface is not selected.

1.3.6 IEEE1284.4 Protocol
The packet protocol described by IEEE1284.4 standard allows a device to carry on
multiple exchanges or conversations which contain data and/or control information
with another device at the same time across a single point-to-point link. The protocol is
not, however, a device control language. It does provide basic transport-level flow
control and multiplexing services. The multiplexed logical channels are independent of
each other and blocking of one has no effect on the others. The protocol operates over
IEEE1284.

Automatic Selection
An initial state is compatible interface and starts IEEE1284.4 communication
when magic strings (1284.4 synchronous commands) are received.

PRODUCT DESCRIPTIONS

Interface

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.4.3 Panel Functions

1.4 Operations

Table 1-15. Panel Functions

1.4.1 Buttons

Buttons

Function

Roll Paper button
Maintenance button

Maintenance

Ink Cartridge replacement button
Power button
Roll Paper

1.4.2 Indicators
Power
Lights when the operating switch is “ON” and AC power is supplied.

Error

Ink Cartridge Replacement

Lights during the error condition, and blinks during the ink low condition.

Ink Cartridge
replacement
button

*1:

Error indicator

• Starts the Ink Cartridge change sequence.
Moves the carriage to the carriage change position.
• Returns a carriage to the home position when the
carriage is at the ink cartridge replacement position.

Table 1-16. Power On Panel Functions
Buttons
Maintenance
Roll Paper

Power button

Maintenance
+
Roll Paper

Maintenance button

• Loads or ejects Roll Paper. (Back Out feed*1)
• Feeds and returns from the Tear-Off operation.
• Returns a carriage to the home position when the
carriage is at the ink cartridge replacement position.

Press the button for 3 seconds.

Power indicator

Roll Paper button

• Loads or ejects paper.
• Returns a carriage to the home position when the
carriage is at the ink cartridge replacement position.
• Starts the head cleaning*1.
• Returns from an error condition.

Pressing with Power On Function
• Starts status printing*2.
• Changes code pages /select IEEE1284.4 mode for
parallel I/F*3.
• Enters the special settings mode. (Factory use only).

*2:

According to the content of 1BH of the EEPROM, one of the following
actions needs to be carried out. (See Table 1-17 on page 29)

*3:

Do not mention the information to the users.

Figure 1-9. Control Panel

PRODUCT DESCRIPTIONS

Operations

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 1-17. Content of 1BH of EEPROM
[bit7] [bit6]

Actions

00
11

Prints firmware version, ink counter, selected code
page and nozzle check pattern.

Starts the hex-dump mode.

Starts the self test mode.

1.4.4 Special Setting Mode
To enter the special setting mode, press the Maintenance button and the Roll Paper
button while turning on the printer until the Power indicator blinks. While it is blinking
(for 3 seconds), press the specified button to activate the desirable setting mode.
NOTE: The special setting mode is not described in the user’s manual.

Table 1-18. Special Setting Mode
Buttons

*4: Factory default setting.

*1:

Functions

Maintenance

• Initializes the EEPROM and Timer IC.

Roll Paper*1

• Resets the ink overflow counter (Protection
Counter) in the EEPROM.

Pressing the button for 10 seconds.

EEPROM/Timer IC Reset
The following will be reset when this operation is executed.

Interface selection (04H)
CL Time (68H, 69H)
Power Off timer (6AH, 6BH)
Waste Ink Counter Reset
The following will be reset when this operation is executed.

Ink counter A0 (6CH, 6DH)
Ink counter A80 (6EH, 6FH)

PRODUCT DESCRIPTIONS

Operations

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.4.5 Printer Initialization

1.4.6 Initialization Value

EPSON Stylus PHOTO 890/1280/1290 executes initialization by using 3 methods
mentioned below.

When the printer is initialized, it clears the following settings to their initialization
values. However, panel setting values, default setting values, and values set by the
remote command remain as they are.

Hard Initialization
The Hard Unitization will be performed when the printer is turned on or
recognizes the cold reset command. (remote RS command)
The following will be performed during initialization.

Top of page

Current TOP

Line feed

4.23mm(1/6 inch)

Right margin

80 columns (Stylus PHOTO 890)
127 columns (Stylus PHOTO 1280/1290)

Clears input data buffer.

Left margin

1st column

Clears print buffer.

Character pitch

10 cpi

Sets default values.

Print mode

Text mode (Non graphics mode)

Initializes printer mechanism.

Software Initialization
The ESC@ command also initializes the printer.
The following will be performed during initialization.

Clears print buffer.
Sets default values.
3.

Panel Initialization
The Panel Initialization will be performed if the printer is turned off and back on
within 10 seconds, or *INIT signal (negative pulse) is input.
The following will be performed during initialization.

Caps the printer head.
Ejects paper.
Clears input data buffer.
Clears print buffer.
Sets default values.

PRODUCT DESCRIPTIONS

Operations

EPSON Stylus PHOTO 890/1280/1290

Revision C

1.5 Dimension
EXTERNAL DIMENSION
Stylus PHOTO 890
When stored(mm):

471 (W) x 290 (D) x 175 (H)

For use(mm):

471 (W) x 613 (D) x 302(H)

Stylus PHOTO 1280/1290
When stored(mm):

609(W) x 311(D) x 175 mm (H)

For use(mm):

609(W) x 766(D) x 414mm (H)

WEIGHT
Stylus PHOTO 890:

6.0 kg

Figure 1-10. Stylus PHOTO 890 in Use

Stylus PHOTO 1280/1290:8.4 kg

Figure 1-11. Stylus PHOTO 1280/1290 in Use

PRODUCT DESCRIPTIONS

Dimension

EPSON Stylus PHOTO 890/1280/1290

PRODUCT DESCRIPTIONS

Revision C

Dimension

CHAPTER

OPERATING PRINCIPLES

EPSON Stylus Photo 890/1280/1290

Revision C

2.1 Overview
This section describes the operating principles of the printer mechanism and electrical
circuit boards. The major components of the EPSON Stylus Photo 890/1280/1290 are:

Printer mechanism:

Stylus Photo 890:
Stylus Photo 1290:

The basic structure of the printer mechanism is mostly common to the Stylus COLOR
400, except that the Stylus Photo 890/1290 uses a Pump/ASF motor. With this motor
equipped, the paper loading mechanism and the pumping mechanisms are
independently driven, which allows the printer to offer higher throughput.
Figure 2-1 shows the printer mechanism block diagram for the Stylus Photo 890/1290.

M4T12
M4S61

Main board:

Rotary Encoder
Intermittent Gear

Stylus Photo 890 : C393MAIN-C/C393MAIN-B
Stylus Photo 1290: C393MAIN/C393MAIN-B
Power supply board:

PF Drive Gear (high precision)
Photo Interrupter (Encoder)

PF Motor Pinion

Detector Wheel

PF Motor

C378PSB/PSE Board

Flashing Window
(at 80th or 136th column)
Photo Interrupter (Encoder)

PRINTER MECHANISM

ASF Sensor
LD Roller Shaft

Notched Roller

Unlike other EPSON ink jet printers, the EPSON Stylus Photo 890/1280/1290 uses a DC
motor as power source. The DC motor enables the printer to lower noise during
printing. Table 2-1 shows various motor types used in the printer and their applications.

Loading Rollers

Table 2-1. Motor Types and Corresponding Applications
Table 2-2.
Motor Name

Type

CR motor

Drives the carriage making little noise. Works with
a linear scale to monitor motor’s operating
condition.

PF motor

DC motor with
brush

Supplies power to drive paper feeding rollers used to
send paper at specified speeds and load/eject paper.
To monitor paper feeding pitch, a loop scale is
attached beside the high-precision gear.

4-Phase / 48-pole
stepping motor

Printhead

PE Sensor

Application / Feature

DC motor with
brush

Pump/ASF
motor

Carriage Unit

Timing Belt
Cap Unit
(without a valve)

Pump/ASF Motor

Pump Unit

Sends drive for pump operation and paper feeding
from ASF. Since this is a stepping motor, it has no
scales or photo sensors that are used to monitor
motor’s operating condition.

CR Guide Shaft
PF Roller

CR Motor
PG Lever

ASF/Pump Disengage
Gear Train

Liner Scale

Figure 2-1. Printer Mechanism Block Diagram

OPERATING PRINCIPLES

Overview

EPSON Stylus Photo 890/1280/1290

Revision C
Ink Cartridge

2.1.1 Printhead Mechanism

An ink cartridge stores ink to be supplied to the printhead.

The printhead mechanism operating principles of the Stylus Photo 890/1290 are
basically the same as for the previous EPSON ink jet printers. This printer, however,
employs a newly developed ink and improved printhead driving method to provide a
higher print quality and faster printing speed than ever. Also, an IC called CSIC that
stores ink-life data is attached to each ink cartridge. With this IC, ink life of each
cartridge can be individually monitored. Note, like for other models, a head voltage
must be written with a PC.

CSIC:
CSIC is a non-volatile memory EEPROM attached to each black and color ink
cartridge. It keeps the following information:
1) Ink remaining level
2) Number of cleanings performed
3) Number of installation of the ink cartridge

The printhead mechanism consists of ink cartridges and printheads. Each printhead is
composed of PZT (Piezo Electric Element), nozzle surface, ink supply needle, nozzle
selection circuit board, cartridge sensor, CSIC, and CSIC connection circuit. Figure 2-2
shows its component layout.

4) Accumulated installation time of the cartridge
5) Model name of the printer in use
6) Ink cartridge production information

Printhead
CSIC

PZT

Nozzle Selector
Circuit Board

Driven by the print signal from the control circuit board, it ejects ink from the
nozzle plate.

CSIC Connection
Circuit

Ink Cartridge

Nozzle plate

Ink Supply Needle

Ink pressured by the PZT is ejected from this plate.

Ink supply needle
Connects the ink cartridge and printhead to run ink to the printhead.

CSIC connection circuit
Connects the control circuit board and CSIC attached on the ink cartridge.
One end of the harness is connected to the control board together with the
printhead cable.

Nozzle selection circuit board
Nozzle Plate

This circuit, controlled by ASIC on the control circuit board, selects nozzles
to be driven for printing. On the other hand, head drive voltage is produced on
the controller circuit side.

PZT

Figure 2-2. Printhead Mechanism

OPERATING PRINCIPLES

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

2.1.2 Carriage Mechanism
The carriage mechanism of the Stylus Photo 890/1290 is composed of the carriage
motor (CR motor), carriage guide shaft, platen gap adjustment/parallelism adjustment
mechanism, carriage lock mechanism, and so on.
Photo Coupler

2.1.2.1 Carriage Motor (CR Motor)

CR Motor

Carriage Unit
Linear Encoder

The carriage mechanism of this printer is mostly the same as for other ink jet printers’
except it uses a DC motor as power source. See the table below for the carriage motor
specifications.

Table 2-3. Carriage Motor Specifications
Table 2-4.
Items

Specifications

Type

DC Motor with brush

Drive Voltage

+42 V +/- 5% (Applied to the driver)

Coil resistance

29.2 ohms +/- 25%

Inductance

30.0 mH +/- 25%

Drive Method

Constant Current Chopping

Driver IC

LB1947

Adjust Lever

Parallelism Adjustment
Bushing

Platen Surface

Carriage Guide
Shaft
Eccentric Shaft

Op03

Figure 2-3. Carriage Mechanism (Top view)
In previous ink jet printers, since a stepping motor is used as a CR motor, the CR motor
controls the carriage position under the open loop system. This printer, however,
controls carriage speed and position with the closed loop system enabled by a DC
motor and encoder. This system, also used in the Stylus COLOR 900, is applied to
maintain a constant print quality. The CR motor also produces the print timing signal
(PTS signal) used for an accurate ink ejection timing. (Refer to Section 2.2.2.3 for
further information on the CR motor control circuit.)
For printing, the CR motor moves the carriage unit in the printing area along the CR
guide shaft.

OPERATING PRINCIPLES

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

2.1.2.2 Platen Gap (PG) /Parallelism Adjustment Mechanism

2.1.3 Paper Feeding Mechanism

The PG adjust lever is attached to the left end of the carriage guide shaft. When the
carriage guide shaft, which has an eccentricity, rotates as the adjustment lever moves, it
narrows or widens the distance (=PG: from 1.2 mm to 2.1 mm). This mechanism
enables the user to print with a correct PG according to print result or other conditions
such as paper curl.
Also, the parallelism adjustment bushings are attached to the right and left ends of the
carriage guide shaft. They are used to set the carriage guide shaft parallel with a platen.

The paper feeding mechanism transports paper loaded from ASF using the PF rollers
and paper eject rollers. A new type of DC motor is used as the PF motor. See the table
below for the PF motor specifications.

Table 2-7. PF Motor Specifications
Table 2-8.
Item

Table 2-5. Platen Gap Adjust Lever Setting
Table 2-6.

Description

Motor type

DC Motor with Brush

Drive voltage

+42V +/- 5% (Applied to the driver)

Lever Position

PG adjustment value

Coil Resistance

29.2ohm +/- 25%

Front (0)

0 mm (=PG is 1.2 mm)

Inductance

30.0mH +/- 25%

Rear (+)

+ 0.9 mm (=PG is 2.1 mm)

Control method

Constant current chopping drive

2.1.2.3 Carriage Home Position (HP) Detection
Unlike previous Epson ink jet printers, the carriage home position is detected with the
drive current from the CR motor and speed/position signal from the linear encoder.

Stepping motor that is used in other printers as the PF motor controls paper feed by the
open loop system. On the other hand, this printer controls paper feeding mechanism
with the closed loop system by employing the DC motor and rotary encoder for more
accurate paper feeding. Therefore, a rotary encoder attached to the left end of the PR
roller shaft controls paper feed amount. For detailed information, see Section "PF
motor driver circuit".
Drive from the PF motor is sent to the PF rollers and paper eject rollers as described
below.

Drive transmission to the PF rollers:
PF motor pinion gear → Spur gear (76) → PF rollers

Drive transmission to the eject rollers:
PF motor pinion gear → Spur gear (76) → Combination gear (13.5, 308) → Spur
gear (28) → Paper eject rollers

OPERATING PRINCIPLES

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

Figure 2-4 gives the paper feeding mechanism block diagram, showing the parts along
the PF motor drive transmission paths.

Paper Eject Roller
Combination Gear
(13.5, 308)

[Previous Models]
PF Roller

Printhead
Support Roller

Platen Surface
Notched Roller

Spur Gear (76)

Paper

Front Paper Guide
PF Motor

PF Motor Pinion Gear

Paper Eject Roller

PF Roller
Bottom Margin (3 mm)

[Stylus Photo 890/1290]
5°

Figure 2-4. Paper Feeding Mechanism
The printer loads paper at the ASF, which is detected by the PE sensor attached to the
right side of the top frame, and advances it to send the paper’s leading edge to the
halfway of the front paper guide. Then, to correct paper deflection, the printer feeds the
paper back specified steps toward ASF, and advances the paper again toward the front
paper guide and stops it at the specified TOF (Top Of Form) position. Once printing
starts, the paper is fed by the PF rollers and sub rollers. For printing or transporting the
tailing edge area (14 mm), a notched roller and drive from the paper eject roller are
used. Like the Stylus Photo 870/1270, this printer also provides this extra printable
range of 14 mm from the bottom edge, excluding the bottom margin of 3mm, by
changing the position of the star wheel gear; it has been shifted by 5° from the top of
the eject roller toward the front paper guide. Due to this change, the tailing edge of
paper is suppressed, and the printer can advance paper steadily. See Figure 2-5 next
page that shows how paper is transported and parts involved.

OPERATING PRINCIPLES

Overview

Steady Feeding

Figure 2-5. Paper Transportation

EPSON Stylus Photo 890/1280/1290

Revision C

2.1.3.1 CR Lock Mechanism
The carriage lock mechanism prevents the carriage from being left uncapped for a long
time, which is usually caused by vibration during printer transportation, user’s
mishandling of the printer, and so on. If the carriage unit is left uncapped for a long
time, ink on the printhead surface dries gradually and, eventually, ink can not flow to
nozzles. In addition to that, there is a possibility that the nozzles clogged with dried ink
can not be recovered by a head cleaning. To avoid this problem, the printer locks the
carriage unit under the circumstances below:

After Power-Off
If the printer power is turned off in the middle of printing or other operations, the
printer completes the initialization sequence and then performs a carriage lock.

Right Side View

Top View
CR Lock Lever

After Power-On

Bushing

When the printer is turned on, the printer automatically begins a power-on cleaning
and then performs a carriage lock.
[Power-on cleaning]
The printer runs a power-on cleaning automatically when its power is turned on. Since
the timer IC on the main control circuit board is powered by a lithium battery that is
also mounted on the board, it keeps counting the printer’s power off time. According to
the power of time counted, the printer selects the cleaning level to perform.

Paper Eject Roller
Middle Frame

After paper ejection
If the printer does not receive any print data after Load/Eject button is pressed, it
performs a carriage lock and enters a standby status. But if paper is fed into the printer,
the printer does not perform it.

OPERATING PRINCIPLES

Overview

Figure 2-6. CR Lock Mechanism

EPSON Stylus Photo 890/1280/1290

Revision C

2.1.4 Paper Loading Mechanism

2.1.4.1 Drive Transmission to the ASF Unit

The paper loading mechanism loads paper at the ASF unit and feeds paper to the PF
rollers. The ASF unit is the same as in previous models. A 4-phase 48-pole PM type
stepping motor is used as the ASF/Pump motor to drive ASF. Drive sent from this
motor is transmitted to the ASF side and Pump side via the disengage mechanism (DE
mechanism). See Figure for the ASF/Pump motor specifications.

1) The CR unit moves to the right end of the CR shaft, which then pushes the DE
lock lever to the right end.

Table 2-9. ASF/Pump Motor Specifications
Items

Description

Motor type

4 Phase/ 48-pole /PM type pulse motor

Drive method

Bipolar constant current drive

Drive voltage

+42V +/- 5% (applied to the driver)

Coil Resistance

10.4 ohm +/- 10%

Inductance

15.0 ohm +/- 10%

2) The ASF/Pump motor rotates counterclockwise specified steps (viewed from the
motor pinion gear side).
3) With the ASF-Pump motor’s rotation of step 2), the planetary gear set in the DE
unit shifts toward the combination gear (12, 22.4).
4) The carriage unit moves from the right end of the CR shaft specified steps, which
causes the DE lock lever to fix the planetary gear unit.
5) Torque from the ASF/Pump motor is transmitted as described below.
Motor pinion gear → Planetary gear (15.2) → Combination gear (12, 22.4) →
Combination gear (14, 28) → Spur gear (32) in ASF
Figure 2-7 shows the disengage mechanism and its parts.

The rotation directions in order to drive ASF unit/ Pump mechanism are as shown
below.

Combination Gear
14, 28

Table 2-10. Directions of ASF Unit/Pump Mechanism Rotation
Rotation Direction

ASF Paper Loading Roller
Rotation Direction

Pump Rotation Direction*1

CW*2

Reverse Rotation

Normal Rotation

CCW*3

Normal Rotation

Reverse Rotation

*1:

Refer to “Drive Transmission to the ASF Unit” on page -40

*2:

CW refers to clockwise from ASF/Pump Motor Pinion side

*3:

CCW refers to counterclockwise from ASF/Pump Motor Pinion side

Planetary Gear 15.2 Unit

A DE Lock Lever

ASF-Pump Motor Pinion Gear

Drive from the ASF/Pump motor is sent to the ASF unit by the switching operation of
the carriage unit and the DE mechanism described in the following section.

OPERATING PRINCIPLES

Combination Gear 12, 22.4

Combination Gear 17.19, 25.6

Figure 2-7. Disengage Mechanism
The ASF unit loads paper by the torque sent from the ASF/Pump motor via the DE
mechanism as described in the following section.

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

2.1.4.2 Paper Loading Operation
Multiple paper loading prevention mechanism is included in the ASF unit to ensure
steady paper loading. To prevent any paper from falling from the paper set position
into the paper path, the paper return lever pushes paper that may have fallen off back
onto the hopper. After this motion is completed, the LD roller starts loading paper. The
paper loading mechanism, including the multiple paper loading prevention mechanism,
is described in the following steps.

Hopper
Hopper Spring

LD Roller

2) When the paper loading signal is sent from the PC and the Load/Eject button is
pressed, the ASF/Pump motor turns counterclockwise to let the LD roller start
loading paper. (See “Paper Pick Up State” in Figure 2-1.)
3) When the paper is transported to the PF roller, the LD roller stops where it loses
friction. (See “PF Roller Paper Feed State” in Figure 2-1.)
4) When the next print signal is sent and Load/Eject button is pressed*, the ASF/
Pump motor rotates clockwise specified steps to set the LD roller and the paper
return lever in standby status. (See “Standby State” in Figure 2-1.)

2
3

Pad Spring
Paper Return
Lever

Pad

Standby State

* If the printer does not receive any print signal for TBD seconds in step 4, the LD
roller and the paper return lever automatically return to the standby state.

OPERATING PRINCIPLES

Pinch Roller

Cam

1) When the printer power is turned on, the ASF/Pump motor rotates
counterclockwise to detect ASF home position. Then it rotates clockwise specified
steps to set the LD roller and paper return lever in their standby status. (See
“Standby State” in Figure 2-1.)

Paper Load State

PF Roller Paper
Feeding State

Flowchart 2-1. Multiple Paper Loading Prevention Mechanism

Overview

EPSON Stylus Photo 890/1280/1290

Revision C
Torque transmission to the pump unit

2.1.4.3 Pump Mechanism
The pump mechanism absorbs ink from the printhead and the cap assembly. The wiper
for head cleaning is included in the cap assembly.

The torque from the ASF/Pump motor is transmitted to the pump mechanism as
described below:

The pump mechanism is driven by the ASF/Pump motor, a 4phase 48-pole PM type
stepping motor. See Table for the ASF/Pump motor specifications. When the torque
from the ASF/Pump motor is switched to the pump unit side, the pump mechanism acts
differently according to the directions of the ASF/Pump motor rotation, as shown in the
table below.

1) The CR unit moves to the right end of the CR shaft, which then pushes the DE
lock lever to the right end.
2) The ASF-Pump motor rotates clockwise (viewed from the motor pinion gear
side) specified steps.
3) With the rotation of step 2), the planetary gear set in the DE unit moves toward
the combination gear (17.19, 25.6).
4) The CR unit moves specified steps from the right end of the CR shaft to the
left. With this motion, the DE lock lever fixes the planetary gear set.
5) Torque from the ASF/Pump motor is transmitted as described below.
Motor pinion gear → Planetary gear (15.2) → Combination gear (17.19, 25.6)
→ Tension belt → Pump unit gear → Pump unit

Table 2-11. ASF/Pump Motor Functions
Directions

Corresponding Functions

Counterclockwise

• Absorbs ink.
• Sets the wiper.

Clockwise

• Releases tube.
• Resets the wiper.

DE pump mechanism and operating principle are as shown in the figure below.

Combination Gear 14, 28

Combination Gear 12, 22.4

Planetary Gear 15.2

A
DE Lock Lever
Tension Belt

Figure 2-9. Pump Operating Principle
ASF/Pump Motor Pinion Gear

Combination Gear 17.19, 25.6

Pump Unit Gear

Figure 2-8. Torque to the Pump Mechanism

OPERATING PRINCIPLES

When the pump unit rotates CCW from ASP/Pump motor side, rollers rotates
compressing a tube, and the ink in the tube is pressed from the capping unit down
to waste ink pads.

2) When the pump unit rotates CW, the rollers stop compressing the tube, and the ink
is not pressed to the waste in pack.

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

2.1.4.4 Capping Mechanism
The capping mechanism, which is driven by the pump unit, caps the printhead closely
to maintain air tightness inside the cap. This operation is required to vacuum ink from
the ink cartridges, printhead, and cap. Also, to moisten the inside of the cap while the
printer power is off, this mechanism works to keep the cap and the printhead surface in
a tight contact. This function prevents ink from clogging while the printer is not in use.

The capping mechanism of this printer is a newly designed valveless capping
mechanism. So, unlike previous printers, it does not integrates an air valve. The air
valve is usually equipped to remove bubbles created inside the cap by releasing the
negative pressure. However, due to change in the ink sequence, the new valveless
capping mechanism enables the printer to maintain the initial ink charge and cleaning
effects at the same level as before. Figure 2-10 outlines the valveless capping
mechanism.

Stylus Photo 890/1290

Previous Models

Negative
pressure is
released here.

Ink Ejection
Hole
Ink Ejection
Hole
Valve

Closed state

Released state

There is no air valve
assembled.

Figure 2-10. Valveless Capping Mechanism

OPERATING PRINCIPLES

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

2.2 Electrical Circuit Operating Principles
The electric circuit of the Stylus Photo 890/1290 consists of the following:

Control circuit board:

C393MAIN/C393MAIN-B/C393MAIN-C

Power supply board:

C378PSB/PSE

Panel board:

C393PNL

Refer to Figure 2-11 for the major connection of the boards and their roles.

2.2.1 C378PSB/PSE Board
The power supply board for the Stylus Photo 890 and Stylus Photo 1290 is C378PSB/
PSE. It uses a RCC switching regulator system, and supplies +42VDC and +5VDC to
the printer mechanism and control board.

2.2.1.1 Electrical Circuit
The table below shows the voltages produced in this circuit and their applications.

Table 2-12. Application of the DC Voltages
Table 2-13.
C393PNL Panel
Panel Board
Board

Voltage

Printer
Printer Mechanism

+42VDC ± 2VDC

CR Motor
C393MAIN
C393MAIN / C393MAIN-B/
C393MAIN-B/
C393MAIN-C Control Board

PF Motor

+5VDC ± 0.25VDC

ASF/Pump Motor

Application
•
•
•
•

CR Motor
ASF/Pump Motor
PF Motor
Head driving power supply

•
•
•
•

Logic sensor circuit
Panel LED
Nozzle selection circuit (on the printhead)
I/F control circuit

3.3V Regulator
Head Driver Circuit
Sensors

Power OFF

+5VDC

NOTE: The 5VDC is only applied to the parts and locations shown in the table above.
The C393MAIN uses 3.3V drive chips for most of the logic-line chips (CPU,
ASIC, ROM, DRAM). For this reason, those chips are not driven by the +5VDC
produced by the but power supply board but the 3.3VDC that is reduced by the
3.3VDC regulator on the C378PSB/PSE.

+42VDC

C378PSB/PSE Power
Supply Board

Figure 2-11. Electric Circuit of Stylus COLOR 890/1290

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

Figure 2-12 shows the block diagram for the C378PSB/PSE board.

The C378PSB/PSE Board produces the +42VDC and +5VDC using AC power as
described below:
1.

Regardless of the power switch’s on/off condition, voltage is always applied to the
primary side of the power supply board from the moment or at the state that ACplug is plugged in. F1, a fuse, prevents AC100V from flowing into the circuit. A
power thermistor TH1 also protects the circuit from rush current after power-on.
The filter circuit composed of L1, C1, and C2 prevents high harmonic wave noise
generated in the switching circuit from going out, and eliminates the noise from
outside.

2) The AC voltage is full-wave rectified by the diode bridge DB1 and smoothed by
C11.
3) Switching FET Q1 turns on via starting resistors R18 and R28 that are located on
the AC side to begin switching operation. By arranging the starting resistors on the
AC side, half waves of the AC voltage are only applied, and power used for this
operation is reduced compared with usual serial layout.
4) When the primary side is on, because the diode (D51) on the secondary side is
installed in the reverse direction, energy (current) led by the electromagnetic
induction through the trans (T1) does not flow to the secondary side.
5) When the energy charged in the transformer reaches a saturated state, the voltage
which keeps Q1 on becomes weak gradually. At the point this voltage drops to a
certain level, C13 absorbs the reverse current and Q1 quickly shuts off.
6) When the primary side is turned off, the energy charged in T1 is opened according
to the diode(D51) direction on the secondary side. +42 V DC is output by these
circuit operations and the number of T1 spiral coil.
7) +5VDC is generated out of this +42VDC. Forming reference sawteeth waveforms
with an external RC integrating circuit, IC51 produces stable +5VDC with a
chopping circuit.

Figure 2-12. C378PSB/PSE Board Block Diagram

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

2.2.1.2 Protection Circuits

2.2.1.3 Power Supply Control Function

The C378PSB/PSE board has the various protection circuits to stop voltage outputs if
an abnormal condition relating to the control circuit or the printer mechanism’s duty
occurs.

Since this printer has the power switch in the secondary circuit, even if its power is
turned off through the operation panel, it can continue to supply voltage to the +5VDC
line and +42VDC line for about 30 seconds. This extra time allows the printer to
complete the following operations:

+42VDC Line Constant Voltage Control Circuit:
The output level of the +42V line is monitored by a detection circuit composed of
numbers of Zener diodes, and the information is fed back to the primary side via
photo coupler PC1. Along with the fed back signal, the switching FET on the
primary side varies the level of the voltage output to the secondary side by
changing its frequency to keep the voltage up.

+42VDC line over current protection circuit:
If the +42 VDC line is over currented, the output voltage level drops drastically.
When the voltage level is 36V or lower, zener diode ZD90 detects that condition
and sends information to the primary side via photo coupler PC1. In the primary
circuit, then, switching operation stops to protect the electrical circuits and printer
mechanism. To reset the circuit, turn the printer off and back on.

If the printer is in a printing motion and the CR unit is out of its home position, the
printer stops printing, returns the CR unit to the home position, and performs CR
lock operation. Then the printer power shuts down.

If the printer is not printing but paper loaded at ASF remains in the printer, the
printer ejects the paper before the printer power shuts down.

2.2.1.4 Energy Save Mode
The power supply circuit enters the energy save mode by the signal ESAVE sent from
the control circuit. One the circuit is in this mode, it maintains the +42V line level in a
range from +20V to +23V.

+42VDC line over voltage protection circuit:
If the voltage level of the +42VDC line exceeds 59V, zener diodes D52 and ZD87
detect it and feed back the information to the primary side via photo coupler PC1.
The switching operation in the primary side then stops to protect the electrical
circuits and printer mechanism.

+5V line constant voltage/constant current control circuit:
Both +5V line output voltage and +5V line output current are monitored by
chopper IC (IC51). Detected information is input to the IC’s internal comparator
and stabilizing circuit. When the IC detects abnormally high current level, it stops
outputting voltage. The circuit recovers automatically.

+5V line over voltage protection circuit:
If the +5VDC output level exceeds 12V, zener diode ZD53 detects that condition
and feeds back the information to the primary side via photo coupler PC1. The
switching operation in the primary side then stops to protect the electrical circuits
and printer mechanism.

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

2.2.2 C393MAIN Board Circuit Operation Principles
The C393MAIN board includes the following:

Logic circuit (CPU, ASIC, DRAM, EEPROM, and so on)

There are three kinds of main board installed on EPSON Stylus Photo 890/1280/1290.
Stylus Photo 890 is equipped with either C393MAIN-B or C393MAIN-C while Stylus
Photo 1290 is equipped with either C393MAIN or C393MAIN-B. Block diagram of
each main board are shown in the following figures below.

Various motor control/driver circuits (CR motor, PF motor, and ASF/Pump
motor)

CR Encoder senser

Head control/driver circuits
Head

Interface circuit (parallel I/F, USB I/F)
Sensor circuit

CR1

Timer circuit

Timer &
Reset IC
(IC4)

Reset circuit
The C393MAIN/C393MAIN-B/C393MAIN-C board is mainly different from other
main boards in the following points.

Use of 3.3V drive logic chips
IC21, the 3.3 V regulator IC on the C393MAIN, produces 3.3 V by pressuring
down the 5.5 VDC generated on the C378PSB/PSE board to drive several chips.
These chips are used to reduce power used to drive the logic circuit. See the table
below that separately shows the chips driven by the +5V and +3V.

Table 2-14. 3.3V Drive Chips & 5.5V Drive Chips
Table 2-15.
+5V

Sensors
USB I/F Circuit
(Except high speed)
PNL Board

OPERATING PRINCIPLES

IC4

IC7 E0BA13KA

3.3V
CPU
ASIC
P-ROM
D-RAM
RTC/Reset/EEPROM
USB I/F Circuit
(During high speed)

Figure 2-13. Block Diagram for the C393MAIN Board
(For Stylus Photo 1290 only)

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

CR Encoder senser

Head

CR1

Timer &
Reset IC
(IC4)

IC4

IC7

E0BA13KA

IC7 E0BA13KA

Figure 2-14. Block Diagram for the C393MAIN-B Board
(For Stylus Photo 890/1290)

OPERATING PRINCIPLES

Figure 2-15. Block Diagram for the C393MAIN-C Board
(For Stylus Photo 890 only)

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

Table 2-16 shows the major ICs on the C393MAIN Board and their functions.

Table 2-16. Major Element on C393MAIN
IC

CPU (HD6412670)
(C393MAIN/
C393MAIN-C)

ASIC (E05B87**)
(C393MAIN/
C393MAIN-C)

OPERATING PRINCIPLES

Location

Functions

IC18

A 144-pin QFP package. Operates at 24.0MHz. Power supply voltage is
3.3V.
• Sets the current value for the ASF/Pump motor.
• Measures the printhead temperature.
• Several interrupting functions
• Outputs the system clock signal.

IC19

A 240-pin QFP package. Operates at 48.0MHz/24.0MHz/28.0MHz. Power
supply voltage is 3.3V.
• Controls interfaces.
• Controls specified motors.
• Controls the printhead drive waveform circuit.
• Transfers serial data to the printhead.
• Controls the ASF/Pump motor
• Receives panel control signals and sensor signals
• EEPROM
• Controls detection of the signals output from the encoder.
• CPU and ASIC are built in in the IC.

ASIC
(E01A20CA**)

IC19

PROM

IC2

8/16Mbit
• Stores the firmware or firmware +CG

DRAM

IC5

A 16Mbit DRAM. Power supply voltage is 3.3V.
• Serves as specified buffers and work area

RTC IC
RTC9822**

IC4

• Resets the +5V/+24 VDC line circuits.
• Serves as the timer powered by a lithium battery.

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C
Head common driver circuit

2.2.2.1 Printhead Driver Circuit
The printhead driver circuit includes:

Common driver IC10 (E09A14RA)/IC11 (E09A15KA) directly attached to
the C393MAIN board.

Nozzle selector IC (IR2C95F or SED6125T0A) on the head board.
The common driver generates reference drive waveforms according to the output
signals from ASIC on the C393MAIN board. The reference drive waveforms are
amplified by the transistors Q2 and Q3 and then transferred to the nozzle selector IC on
the head board. Print data is converted to serial data by the ASIC and then also sent to
the nozzle selector IC on the head board. Based on the serial data, the nozzle selector
IC determines the nozzles to be actuated. The selected nozzles (PZT) are driven
according to the drive waveforms produced by the common driver. See Figure 2-16 for
the printhead driver circuit block diagram.

The head common driver IC10 (E09A14RA)/IC11 (E09A15KA) generates
reference head drive waveforms according to the output of the following 9 signal
lines: A0-A4, CLK1, CLK2, RST, FLOOR, and DATA.
By the DATA signal output from the IC19 ASIC (E01A20CA**), the original data
for the head drive waveform is written in the memory in the IC10/IC11. Addresses
for the written data are determined by the A0 - A4 signals, and, of among, data
used to determine the waveform angles is selected. Then, setting the selected data,
producing trapezoid waveform value, and canceling the data are performed by the
rising edges of the CLK1 and CLK2 signals.

Head nozzle selector circuit
Print data is converted into serial data by the ASIC (E01A20CA**). Then the
converted data is allocated to the six rows, the number of the head nozzle rows, to
be transferred to the nozzle selector IR2C95F (Sharp) or SED6125T0A (EPSON)
through the six signal lines (HS01 to HS06). Data transmission from IC19 ASIC
(E01A20CA**) to the nozzle selector synchronizes with the LAT signal and SCK
clock signal. Referring to the transferred data, The nozzle selector IC selects the
nozzles to be activated, and the PZTs of the activated nozzles are driven by the
drive waveforms output from the head common driver.

Figure 2-16. Printhead Driver Circuit

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

2.2.2.2 RTC (Real Time Clock)/ Reset/ EEPROM Circuit
RTC9822**includes built-in RTC and EEPROM and functions as a reset. The RTC
part has an electric two-layer condenser for backup. The RTC/Reset/EEPROM circuits
are attached on the C393MAIN board to monitor two voltages: +5V for the logic line
and +42V for the drive line. When each circuit detects abnormality on the
corresponding line, it resets CPU and ASIC to prevent the printer from operating
abnormally.

+42V line reset circuit
The VIN port of the IC5 reset IC monitors the +45V line. When the IC detects an
abnormal voltage level (36V or lower), it outputs a reset signal from the VDT port
to CPU and ASIC.

IC4 RTC9822** is attached on the main board as a RTC/Reset/ EEPROM circuit IC.
EEPROM part backups default setting value and each parameter. IC4
RTC9822**monitors +3.3, +5V, and +45 lines but can reset them independently. See
Figure 2-17 for the block diagram for the reset circuits.

Figure 2-17. RTC/Reset/EEPROM Circuit Block Diagram
+3.3V Line Reset Circuit
The VDD port of IC4 reset IC monitors the +5V line. When the IC detects an
abnormal voltage level (2.5 V or lower), it outputs a reset signal from the RST port
to CPU and ASIC.

+5V Line Reset Circuit
The VDD port of IC4 reset IC monitors the +5V line. When the IC detects an
abnormal voltage level (4.2 V or lower), it outputs a reset signal from the RST port
to CPU and ASIC.

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

2.2.2.3 Motor Driver Circuit
Stylus Photo 890/1290 is equipped with 3 kinds of motors, the CR motor and PF motor
that are a DC motor and an ASF/Pump motor, and a stepping motor. The DC motor on
the C393MAIN board is used for DC motor control.

CR motor driver circuit
IC9 (A39374SLB) on the C393MAIN/C393MAIN-B board controls the CR and PFDC
motor while IC9(A3958SLB) on the C393MAIN-C board controls the CR motor.
ASIC sends signals of IC9 through IC8 and determines current of the CR motor. By
setting RST_DCMCU of ASIC “LOW “ level, the motor turns into a
“SLEEP”condition for energy saving.
The block diagram of the CR motor driver IC (IC9) is as shown below.

op13b

Figure 2-19. CR Motor Driver Block Diagram (C393MAIN-B)

Figure 2-18. CR Motor Driver Circuit Block Diagram (C393MAIN)

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

1/180”
1/720”
Phase A

1/360”

Backward Rotation
(Counterclockwise)

Phase B

Forward Rotation
(Clockwise)

Phase A
Phase B
Lens
Photo
Photo
Diodes
Diodes

LED

Comparators

A
+
A B
+
B -

Figure 2-20. CR Motor Driver Circuit Block Diagram (C393MAIN-C)
NOTE: When C393MAIN-C is installed, ASIC sends signals of IC9 and IC1 through IC8
and determines current of the CR motor.

ASIC (IC19) controls the CR position by referring to the pulses sent from the linear
encoder. Based on the data sent from ASIC, the CPU sets an appropriate drive current
value used to determine the CR position and the direction in which the CR moves.
ASIC outputs specified control signals to the motor driver. The motor driver IC9 then
outputs CR motor drive current to the CR motor.
Unlike stepping motors, the DC motor that drives the carriage can not detect the current
carriage position by referring to the pulses given. For this reason, a linear scale is
attached along the carriage operation range to detect the carriage position. The linear
encoder sensor outputs two kinds of TTL level pulses: Phase A and Phase B.

Phase A

Phase B

Figure 2-21. CR Linear Scale Encoder Pulse
Direction for the CR’s current movement is detected based on the pulse waveforms of
the shifted Phases A and B. Carriage position is, on the other hand, controlled based on
a cycle of Phase A output waveform (1 cycle=1/180 inches). Also, all rising and falling
edges of the waveforms in the both phases (1 cycle=720) are used to control the
position of the CR that is in its home position for ink system.

Home position detection
Home position is detected based on the pulses output from the linear scale sensor
and DC motor control current value. The basic home position detection sequence
is as described below:
1) The linear encoder pulse counter in the ASIC (IC19) is reset by an
initialization sequence at power-on.
2) The CR motor turns forward (clockwise) to move the carriage to the right.
ASIC(IC19)assumes that the CR is in contact with the right frame when the
following conditions are satisfied:

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

ASIC(IC19) detects the motor control current value is 720mA.
P1 (= number of pulses output during the above carriage movement) is

1/180”

30* or less.
* Specified value that indicates CR is in the home position. (All edges in the
waveform are used in this condition.)
3) The CR motor rotates backward (counterclockwise) to move the carriage back
to the left, and ASIC(IC19) assumes that the carriage enters the CR lock lever
position when the following conditions are satisfied:

Phase A
A
Phase

Phase B
B
Phase

ASIC(IC19) detects the motor control current value is 500 mA.
Difference between P1 and P2 (= number of pulses output while the CR

1/360”

moves from the right frame) is 30 or less.
4) The CR motor rotates backward to move the carriage to the right again, and if
ASIC (IC19) detects the motor control current value is 720 mA, it assumes
that the CR comes in back in contact with the right frame.
5) Difference between P1 and P3 (= number of pulses output for the CR’s
movement from the CR lock lever position to the right frame) is 4 or less.

Figure 2-22. Print Timing Signal and Linear Encoder Phase A

When all the conditions in the sequence are satisfied, the printer detects the CR is in
the home position.

PTS (Print Timing Signal) production
The circuit produces PTS signal (cycle: 1/360 inches) by dividing waveform
cycles of Phase A. The print timing signal is used to eject ink at a correct timing.

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

PF motor driver circuit
DC motor is used as the PF motor in this printer. IC9 (A39374SLB) on the
C393MAIN/C393MAIN-B board controls the CR and PFDC motor while
IC9(A3958SLB) on the C393MAIN-C board controls the CR motor.
The block diagram of the PF motor driver circuit is as shown below:

op13b

Figure 2-24. PF Motor Driver Circuit Block Diagram (C393MAIN-B)

Figure 2-23. PF Motor Driver Circuit Block Diagram (C393MAIN)

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

1/1440”
1/5760“
Phase A
Phase B

Forward Rotation
(Clockwise)

Phase A
Phase B

Backward Rotation
(Counterclockwise)
Lens

Photo
Diodes

LED

Comparators
Comparators

A
A

Phase A

B
B

Phase B

Figure 2-25. PF Motor Driver Circuit Block Diagram (C393MAIN-C)
op25

ASIC(IC19)controls paper feeding amount by referring to the encoder pulses. ASIC
sends a proper drive current value to the motor driver. Based on the control signal from
ASIC, the motor driver (IC9or IC1) outputs drive current to the PF motor.

Figure 2-26. Loop Scale Encoder Pulse

Unlike a stepping motor, this DC motor can not detect paper feeding amount by
referring to the pulses given. For this reason, a loop scale is attached on the Gear 76 to
detect paper feed amount.
The loop scale encoder sensor outputs two kinds of TTL level pulses Phase A and
Phase B to ASIC (IC19). Direction of the PF motor rotation is determined by the phase
between the output waveforms from Phase A and the waveforms form Phase B

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

2.2.2.4 ASF/Pump Motor Driver Circuit
ASF/Pump motor is a PM type stepping motor. The block diagram for the ASF/Pump
motor is as shown below:

Figure 2-27. ASF/Pump Motor Circuit Block Diagram
(C393MAIN/C393MAIN-C)

OPERATING PRINCIPLES

Figure 2-28. ASF/Pump Motor Circuit Block Diagram
(C393MAIN-B)

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

2.2.2.5 Sensor Circuit
Stylus Photo 890/1290 has the following five sensors to detect printer’s status.

PE sensor
ASF sensor
Ink cartridge sensor (CSIC connector on the head board)
Head thermistor sensor
PF motor encoder
CR motor encoder

The block diagram for the sensor circuit is as shown below:

Figure 2-30. Sensor Circuit Block Diagram (C393MAIN-B)

Figure 2-29. Sensor Circuit Block Diagram
(C393MAIN/C393MAIN-C)

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

EPSON Stylus Photo 890/1280/1290

Revision C

Each sensor’s functions and operating principles are as described below:

PE sensor
The PE sensor is located at the bottom right edge of the top frame in the printer
mechanism. It detects paper on the rear paper guide using a photo sensor and PE
sensor lever that are included in the sensor. When paper is present, the PE sensor
lever does not cut in between the photo sensor terminals. So it outputs a LOW
signal to the ASIC. If there is no paper, on the other hand, the lever cuts in between
the photo sensor terminals. So it outputs a HIGH signal to the ASIC.

resolution of the sensor is 1/180 inch. It outputs HIGH signals for the black bands
and LOW signals for the transparent parts of the linear scale to the ASIC. The
printer controls the CR motor based on the signals output from this sensor. CR
home position is also detected based on the signals from this sensor.

ASF sensor
The ASF sensor, located at the left edge of the ASF, detects ASF home position.
This sensor consists of the ASF HP detector wheel and a transmission photo
sensor. A small portion of the ASF HP sensor has a cutout, and when the cutout
comes into position between the photo diode terminals, that condition is detected
as ASF home position. In this status, since the photo diode terminals are not
blocked by the wheel, a LOW signal is output to ASIC. Otherwise, a HIGH signal
is output. Referring to the ASF home position detected by this sensor, the printer
drives the ASF/Pump motor to set the LD roller and paper return lever ready to the
paper loading position.

Ink cartridge sensor (CSIC connector on the head board)
Ink cartridge sensor detects whether a black or color ink cartridge is installed.
Installation condition is determined depending on the CSIC’s connection. When a
cartridge is installed, a LOW signal to ASIC is output. On the other hand, a HIGH
signal is output when a cartridge is out.

Head thermistor
The head thermistor is directly attached on the head driver board. It monitors the
temperature around the printhead and feeds back the temperature to the CPU
analog port. The printer refers to this information to control head driver voltage
based on the ink viscosity.

PF motor encoder
The PF motor encoder includes the loop scale attached to the left end of the PF
roller shaft and the transmission photo sensor. The minimum resolution of the
sensor is 1/180 inches. The sensor outputs HIGH signals for the black lines and
LOW signals for the transparent parts to the ASIC. The printer controls the PF
motor based on the signals output from this sensor.

CR motor encoder
CR motor encoder consists of the transmission photo sensor assembled in the CR
unit and the linear scale attached along the CR scanning line. The minimum

OPERATING PRINCIPLES

Electrical Circuit Operating Principles

CHAPTER

TROUBLESHOOTING

EPSON Stylus Photo 890/1280/1290

Revision C

3.1 Overview
This chapter describes how to troubleshoot problems. It consists of the sections shown
in the flowchart below. When identifying and troubleshooting problems, be sure to
proceed to the correct section specified in the flowchart.

START
START

Table 3-1. Motor Resistance and Measurement Procedure
Motor

Check pins

Coil resistance

CR Motor

CN14

Pin 1 & 2

29.2 Ω +/- 25%

PF Motor

CN13

Pin 1 & 2

29.2 Ω +/- 25%

ASF/Pump Motor

CN15

Pin 1 & 3 or Pin
2&4

10.4 Ω +/-10%

Table 3-2. Sensor Check and Measurement Procedure

Troubleshooting with
LED error indicators

Sensor

Isolating the defective
parts on the power supply
board

Connector
to check

PE Sensor

Checkpoints

Corresponding
condition

LOW

Paper present

HIGH

Paper out

LOW

In the ASF home
position

HIGH

Out of the ASF home
position

CN5, Pin 1 &2

Isolating the problem
with exhibited
phenomenon
ASF Sensor

Signal level

CN6, Pin 1 &2

Figure 3-1. Troubleshooting Flowchart

Following sections give detailed information on each step in the flowchart. Be sure to
perform troubleshooting by following the specified steps without omitting any
necessary operations.
Following tables show the checkpoints for each motor and sensor.

TROUBLESHOOTING

Overview

EPSON Stylus Photo 890/1280/1290

Revision C
Table 3-3. Error Indication of Operation Panel

3.1.1 Self-Diagnostic Function
The EPSON Stylus PHOTO 890/1290 is equipped with the self-diagnostic function.
With this function, the printer can check its operations after power-on, and shows its
various conditions using LED indicators.

3.1.1.1 Troubleshooting with LED Error Indicators

Indicators
Printer Status
Maintenance Request (Ink
Overflow Counter error)

Priority
Power

Error

Alt Blink

Off

Blink2

Fatal Error

Special setting

Table 3-3. Error Indication of Operation Panel
Indicators
Printer Status

Priority

3.1.1.2 Error Conditions

Power

Error

Ink sequence

Blink

Ink Cartridge replacement mode

Blink

This printer indicates an error when detecting the following conditions, and sets the
interface signal “/ERROR” to LOW and “BUSY” to HIGH to stop data input. In this
condition, the printer automatically enters non-printable status. Note if the printer is
establishing communication by IEEE1284.4 protocol, however, it remains in printable
status.

Data Processing

Blink

Each error condition is described below:

Paper Out*1

Paper Jam*1

Power On condition

Double Feed Error*1

Ink Out
When the printer runs out of the most of the ink of any color, it warns Ink Low and
keeps printing.

Ink End (Black)*1

On->Blink

Ink Level Low (Black)

Blink->Blink

Ink End

Ink End (Color)*1

On->Blink2

Ink in black/color cartridge ends.

Ink Level Low (Color)

Blink->Blink2

Remaining level of ink is low. In this case, the printer warns of the condition with

Ink End (Black & Color)*1

Blink->Blink

Ink Level Low (Black & Color)

Blink->On

No Ink Cartridge (Black or Color)

Reset, Timer IC reset, EEPROM
clear

Ink Overflow Counter Reset

TROUBLESHOOTING

LED indicators. If ink runs out, on the other hand, the printer shows an ink end
condition and stops its operation. Note the error occurs if ink of any color in the
color ink cartridge runs out.

Paper Out
The printer attempts to load paper but fails.

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

Paper Jam
The printer fails to eject remaining paper with the specified number of paper
feeding steps at power-on.

The printer can not eject paper despite the FF command is sent or Maintenance
Switch is pressed.

No Ink Cartridge
Ink cartridge is not installed or installed incorrectly.
Information in CSIC of the ink cartridge is not read or written properly.
Maintenance Request
Total wasted ink amount reaches its capacity by cleaning and flashing. The printer
indicates the error and stops operations.
C A U T IO N

Maintenance request error is not cleared until the waste ink pad is
replaced with a new one, and the waste ink counter in EEPROM is
reset by the service operation.

Fatal Error
A fatal error is indicated when a carriage control error or CG access error occurs.

Double Feed Error
If the printer fails to load paper during duplex printing, the error occurs. Refer to

TROUBLESHOOTING

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

Table 3-4. Error Condition and Possible Causes
No.

Error

Possible Causes

Refer to:

Paper Out

1.
2.
3.
4.
5.

Failure in paper loading
PE sensor connector is disconnected.
Sensor actuator is not acting properly or sensor bracket is not installed correctly.
PE sensor is defective.
ASF operates abnormally.

Table 3-5

Paper Jam

1.
2.
3.
4.
5.

Paper length is beyond the specifications.
The sensor is left on because paper dust or other foreign matter is lodged.
Sensor actuator is not acting properly or sensor bracket is not installed correctly.
PE sensor is defective.
Hopper release lever is not attached properly.

Table 3-6

Ink End / No Ink Cartridge

1.
2.
3.
4.

CSIC is not connected properly.
CSIC is defective.
Head FPC is defective.
Control board is defective.

Table 3-7

Maintenance Request

Protect counter is showing limit.

Fatal Error

1. Linear encoder FFC is disconnected from the sensor or liner encoder is not attached
to the carriage.
2. Linear encoder is dislocated.
3. ASF sensor is dislocated or ASF sensor connector is disconnected.
4. ASF sensor is defective or it fails to detect ASF home position.
5. PF encoder FFC is disconnected from the encoder sensor or the encoder fails to read
the slit pattern on the loop scale.
6. CR motor coil is discontinued or burned.
7. PF motor coil is discontinued or /burned.
8. ASF/Pump motor coil is discontinued or burned.
Improper engagement of ASF gear (32) and the combination gear (14, 28) in the DE
unit.
9. Torsion spring (0.618) has come off the DE lock lever or hook in the DE unit.

TROUBLESHOOTING

Overview

Table
Table 3-9

EPSON Stylus Photo 890/1280/1290

Revision C

3.1.1.3 Remedies for Paper Out Error

Table 3-5. Remedies for Paper Out Error

This section provides checkpoints and corresponding actions to take when a Paper Out
error occurs for either of the following reasons:

Step
1

Paper is set in the ASF hopper but not fed.
Paper is loaded but not detected by the PE sensor actuator.
Be sure to follow the steps in the order listed in the table.

Problem

Check & Actions

Maintenance Switch is
pressed but paper is not
loaded even when the
ASF LD rollers turn,
and a Paper Out error is
displayed.

1. Set a cleaning sheet in the ASF up side down.
2. Holding the top edge, press the Maintenance Switch to
remove micro pearl from the paper load roller.
To remove severe soiling, staple a cloth moistened with
alcohol to a postcard and clean the roller in the same
manner.

NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the
actions in the right column. If not, proceed to the next step.

CL Sheet
Non-adhesive
Non-adhesive Area
Area

Base
Base Sheet
Sheet
(Postcard)
(Postcard)

Adhesive Area
Staples
This side down

The Maintenance
Switch is pressed and
the ASF LD rollers
turn. But they turn
again to send paper
beyond TOP position.
Then a Paper Out error
is displayed.

Cloth moistened
with alcohol

Check if the connector (yellow, 3-pin) for the PE sensor is
connected to PE sensor or CN5 on the Main Board.
PE Sensor
Connector

Torsion Spring

Ditto

TROUBLESHOOTING

Overview

Ditto

• Using your hand, move the actuator as if it were being
pushed by incoming paper. Then release the actuator
and check if it automatically returns to its original
position with the tension of the torsion spring.
• Referring to the illustration above, check that the sensor
base is securely installed to the frame. If the sensor base
is loose or installed insecurely, instal it securely.

EPSON Stylus Photo 890/1280/1290

Revision C

Table 3-5. Remedies for Paper Out Error (continued)
Step

Problem

Check & Actions

Ditto

Check if the PE sensor is defective. Manually toggling the
actuator, measure the voltage at CN5/Pin 3. The correct
voltage levels are as follows:

The Maintenance
SwitchMaintenance
SwitchMaintenance
Switch is pressed and
the hopper appears to
be working OK. But
paper is not loaded.
Then a Paper Out error
is displayed.

Hand-rotate the shaft in the ASF in the paper feed direction
and check if the hopper springs back every time you rotate
the shaft.
NOTE: Even though the ASF HP sensor is working
properly, the hopper does not load paper if it is not
operating at the correct timing. To solve that problem,
disassemble and reassemble the ASF or replace it. In case
the ASF HP sensor detects the ASF home position during
paper feed sequence, the printer enters a fatal error
condition.

TROUBLESHOOTING

Overview

EPSON Stylus Photo 890/1280/1290

Revision C
Table 3-6. Remedies for Paper Jam Error

3.1.1.4 Remedies for the Paper Jam Error
This section includes the checkpoints and actions to take to troubleshoot the Paper Jam
error when it occurs during paper feeding or after the printer is turned on.

Step
2

The printer detects the Paper Jam Error in the following condition.

When the printer is turned on, the PE sensor detects paper and attempts to
eject it using the PF roller. But the paper detection signal does no change to
HIGH.

Problem

Check & Actions

The printer is turned on,
the PF roller turns
continuously for ten
seconds, and then a Paper
Jam error is displayed.

Check if there is any paper debris or dust lodged on the
PE sensor. Also, viewing the PE sensor from the front,
check its lever is set in the correct position.
PE Sensor Lever

Be sure to follow the steps in the order described in the tables.
NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the
actions in the right column. If not, proceed to the next step.

Table 3-6. Remedies for Paper Jam Error
Step
1

Problem

Check & Actions

The PF roller turn to eject
paper but can not eject it
completely. Then a Paper
Jam error is displayed.

Explain to the user that a Paper Jam error occurs if the
paper whose length is beyond the specifications is
used.

Paper Guide Assy.

PF Roller

ditto

Referring to Table 3-5 / Step 3, check if the sensor is
operating properly.

Paper is loaded at the ASF
and fed by the PF roller,
but its leading edge dose
not reach the front paper
guide.
The ASF repeats paper
feeding motion and the
Fatal Error is displayed.

Check if the ASF hopper release lever is properly
installed to the LD roller shaft.
Right ASF Hopper

Left ASF Hopper

3.1.1.5 Remedies for No Ink Cartridge Error/Ink Cartridge
Problem
This section includes the checkpoints and corresponding actions to take to troubleshoot
the No Ink Cartridge Error / Ink Cartridge Problem.
Be sure to follow the steps in the order listed in the table.

TROUBLESHOOTING

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

3.1.1.6 Remedies for Maintenance Request Error

NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the
actions in the right column. If not, proceed to the next step.

If the printer is in this error condition (ink overflow counter error), it stops all
operations including data transfer, except for Special Setting Mode.

Table 3-7. Remedies for No Ink Cartridge Error/Ink Cartridge Problem
Step

Problem

Check & Actions

The printer is turned on
and then displays a No
Ink Cartridge error.

• Check if any ink cartridges are installed improperly.
If so, reinstall them.
• Try removing the ink cartridges and reinstalling them.

Ditto

Check the level of the ink remaining using the printer
driver or progress meter.

Ditto

Replace the ink cartridges with new ones.
• CSIC is defective.

Ditto

• Check if the head FFC is correctly connected to the
head.
• Check if the head FFC is properly connected to the
connector on the main board.
• Check if the main board is defective.

TROUBLESHOOTING

Table 3-8. Remedies for Maintenance Request Error

Overview

Step

Problem

Check & Actions

The Power(green) and Error (red)
LEDs blink alternately.

• Remove Absorber Tray (Refer to
“TRAY, ABSORBER ASSEMBLY
Removal” on page -89).
• Replace Waste Ink Pad with a new one.

Ditto

• Switch to Sepecial Setting Mode
Turn the power on while pressing the
Maintenance and Roll Paper Switches
simultaniously to switch to Special
Setting Mode.

Ditto

• While the Power and Error LEDs are
blinking (3 seconds), press the Roll
Paper Switch for 10 seconds.
• Then, the ink overflow counter in
EEPROM is reset.

EPSON Stylus Photo 890/1280/1290

Revision C

3.1.1.7 Remedies for Fatal Error
A fatal error is basically caused by any of the following conditions:

Table 3-9. Remedies for Fatal Error
Step

The printer fails to detect the CR home position.

The printer fails to detect signals from the linear scale.
The ASF sensor fails to detect the ASF home position.
The following table shows various causes of the fatal error and corresponding
solutions. Be sure to follow the steps correctly to troubleshoot the fatal error.

Problem

Check & Actions

The printer is powered
on and the CR unit
leaves its home
position and then
collides with the right/
left frame. After that, a
fatal error is displayed.

Check the linear encoder board visually for the following:
• Is the linear encoder board properly installed to the
carriage? If not, install it properly.
• Is the encoder FFC connected to the connector? If not,
connect it properly.
Linear Encoder Board

NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the
actions in the right column. If not, proceed to the next step.

Ditto

When the Printer is
turned on, the CR
moves a little and you
hear the ASF Hopper
moving.
After that, a fatal error
is displayed.

• Check that the linear encoder belt passes through the
slot in the sensor.
• Check that the sensor is free from dust and paper
debris.
• Referring to the figure below, check that the ASF
sensor is attached to the correct position.
• Check that both connectors 1 and 2 are securely
connected.
ASF Frame (Left)

ASF Sensor

Control
Board

Connector 1
Connector 2
(CN6)

TROUBLESHOOTING

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

Table 3-9. Remedies for Fatal Error (continued)
Step
4

Problem

Table 3-9. Remedies for Fatal Error (continued)

Check & Actions
Ditto

Step

Turn the printer on and check for the correct voltages at
the pins shown in the figure below:

CN6

Problem

Check & Actions

The printer is turned on
and the carriage and the
PF motor move a little.
After that, a fatal error
is displayed.

Check for the signal output from the PF encoder at either
pair of the following pins on the main control board:
• Pin 1 an Pin 4 of CN12
• Pin 1 and Pin 2 of CN12
Check for the signal output from the linear encoder at
either pair of the following pins on the main control board:
• Pin 1 an Pin 4 of CN12
• Pin 1 and Pin 2 of CN12

To Pin 3
(ASFV)

To Pin 2
(GND)

• When the ASF HP detector wheel is in home
position, the voltage is 0.7 V or less.
• When the ASF HP detector wheel is out of home
position, the voltage is 2.4 V or more.

Encoder Output Waveform

The printer is turned on
but the CR motor does
not operate at all. After
that, a fatal error is
displayed.

Measure the coil resistance of the CR motor using a meter
as shown below:
Resistance: 29.2Ω ± 25%
CR
CR Motor
Motor

TROUBLESHOOTING

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

Table 3-9. Remedies for Fatal Error (continued)
Step
7

Table 3-9. Remedies for Fatal Error (continued)

Problem

Check & Actions

Step

The printer is turned on
but the PF motor does
not operate at all. After
that, a fatal error is
displayed.

Measure the coil resistance of the PF motor using a meter
as shown below:

Resistance: 29.2Ω ± 25%
PF
PF Motor
Motor

Problem

Check & Actions

The Printer is turned on
but:
• ASF makes no
noises.
• ASF does not move
but its gear is
making noises.
After that, a fatal error
is displayed.

Check that the ASF unit is properly installed by the correct
points as shown below:
Stylus Photo 890

Stylus Photo 1290

The printer is turned on
but the ASF hopper
does not make noises.
After that, a fatal error
is displayed.

Measure the coil resistance of the ASF/Pump motor.
Resistance: 10.4 Ω ± 10%

Step 1

10
To Pin 3

To Pin 1

The printer is turned on
but the ASF dose not
move at all. After that,
a fatal error is
displayed.

Check that the torsion spring is securely attached to the
DE lock lever and DE unit.

Tension Spring (0.618)

To Pin 2

Step 2

CR Motor

To Pin 4
DE Lock Lever

NOTE: Be sure to measure the resistance at each pair of
points shown above.

TROUBLESHOOTING

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

3.1.2 Isolating the Faulty Part on the Power Supply Board
This section explains how to troubleshoot the following problems:

3.1.3 Isolating the Faulty Part according to the
Phenomenon
Refer to this section if you could not solve the problem in Section 3.1.1.1 or Section
3.1.2 or need more information to isolate the cause according to the exhibited
phenomenon. This section mostly covers the problems relating to the main control
circuit and other parts.

The printer is turned on but it does not perform initialization and no LED
indicators come on.

Problems occurs after the printer is turned on.

Table 3-11. Phenomenons Exhibited

Be sure to troubleshoot in the order specified since the steps are listed in the
disassembly order to facilitate the job.

No.

NOTE: If you answer “Yes” to a question listed under “Checkpoint”, take the action
described to the right under “Action”. If “No”, proceed to the next step.

Table 3-10. Isolating the Faulty Part on the Power Supply Board
Step

Checkpoint

Action

Is the Panel FFC
disconnected from the
connector on the panel
board?

The power switch for this printer is in the secondary
side. Therefore, if the FFC does not transmit signals, the
power supply board is not active despite the main board
operates properly.

Is the Panel FFC
disconnected from CN11
(black, 12-pin) on the
Main Board?

The power switch for this printer is in the secondary
side. Therefore, if the FFC does not transmit signals, the
power supply board is not active despite the main board
operates properly.

Has the Pin 3 of the panel
FFC broken?

Check for the Pin 3 using a circuit tester.

Has the fuse (F1) on the
power supply board
blown out?

Check if the F1 located beside CN1 on the power supply
board has blown out.

Is CN1 on the power
supply board
disconnected?

Check if CN1 is properly connected. CN1 supplies AC
power to the primary side of the power supply board.

Is CN10 on the main
board disconnected?

Check if CN10 on the main board is properly connected.
CN10 supplies DC voltage to the control circuit.

TROUBLESHOOTING

Phenomenon Exhibited

Table to refer to

CR motor does not rotate.

Table 3-12

PF motor does not rotate.

Table 3-13

Pump/ASF motor does not rotate.

Table 3-14

Cleaning does not solve the print problem.

Table 3-15

Replace the Power Supply Board with a new one.

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

Table 3-12. CR Motor does not Work
Step

Checkpoint

Action

Getting ready for
checking
waveforms.

Using an oscilloscope, check the outputwaveform at CN14
(CR motor connector) on the main board. For checking, press
the Maintenance Switch to drive the CR motor.
NOTE: Be sure to disconnect the CR motor cable.

Checking the
waveforms to
solve the
problem.

Drive the CR motor and check that the waveform shown below
is output from each pin of CN14.

Table 3-13. PF Motor does not Work
Step

• If the waveform appears as shown, replace the CR motor.
• If not, replace the main control board.

TROUBLESHOOTING

Checkpoint

Action

Getting ready for
checking
waveforms.

Using an oscilloscope, check the outputwaveform at CN13 (PF
motor connector) on the main board. For checking, press the
Maintenance Switch to drive the PF motor.
NOTE: Be sure to disconnect the PF motor cable.

Checking the
waveform to
solve the
problem.

Drive the PF motor and check that the waveform shown below
is output from each pin of CN13.

• If the waveform appears as shown, replace the PF motor.
• If not, replace the main control board.

Overview

EPSON Stylus Photo 890/1280/1290

Revision C
Table 3-15. Cleaning Does not Solve the Problem

Table 3-14. ASF/Pump Motor does not Work
Step

Checkpoint

Action

Getting ready for
checking
waveforms.

Using an oscilloscope, check the outputwaveform at CN115
(ASF motor connector) on the main board. For checking,
press the Maintenance Switch to drive the CR motor.
NOTE: Be sure to disconnect the ASF/Pump motor cable.

Checking the
waveforms to
solve the
problem.

Step

Checkpoint

Action

Run the head cleaning Run the head cleaning by pressing the Cleaning button.
7 or 8 times repeatedly.

Perform the initial ink
charge operation.

You can perform the initial ink charge operation in the
manner described below:
1. Using the adjustment program, perform the initial
ink charge operation (= resets the initial ink charge
flag in the EEPROM).
2. Turn the printer off and back on.

Printhead FFC is
disconnected.

Take out the main board and check if the head FFCs are
connected to CN8 and CN9. If they are connected aslant
as shown below, reconnect them, and then run a print
check.

Drive the ASF/Pump motor and check that the waveform
shown below is output from each pin of CN15.

Check that the connectors are not
connected aslant.

• If the waveform appears as shown, replace the ASF/Pump
motor.
• If not, replace the main control board.

Check the cap for any
foreign matter, dirt, or
damage.

Remove the printer
mechanism and
release the carriage
lock to move the
carriage unit away
from home position.
Then, examine the cap
rubber closely for any
problem in the figure
at right.

Dust

Damage

Rubber part

TROUBLESHOOTING

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

Table 3-15. Cleaning Does not Solve the Problem (continued)
Step
5

Checkpoint

Action

Check if the
compression spring has
come off the cap unit.

Check if the compression spring is correctly assembled
in the cap unit as shown below.

Compression Spring

Cap Unit

Note if the compression spring has come off the cap
unit, the cap can not cover the head closely with enough
air tightness, and ink will not be absorbed as a result.
6

Check if any ink tubes
are disconnected from
the cap unit.

Referring to the figure below, check the following:
• Are all ink tubes securely connected to the cap unit?
• Are any ink tubes damaged?
Cap Unit

TROUBLESHOOTING

Ink Tube

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

Table 3-15. Cleaning Does not Solve the Problem (continued)
Step
7

Checkpoint

Action

Check if the head FFCs
have come off the
printhead.

Remove the head FFC holder from the CR unit, and
check that both FFCs are properly connected. Even if
they appear to be properly connected (not slant), try
disconnecting and then connecting them.

Step

Head Board

Check if the head
driver is defective.

TROUBLESHOOTING

Table 3-15. Cleaning Does not Solve the Problem (continued)
9

Head FFCs

Checkpoint

Action

Check if the pre-driver
IC (IC10 or IC11) is
defective.

If the waveform is not output in the previous step, check
for the waveform at the base of Q2 and Q3. Check for
the sawtooth waveform output from the pre-driver IC.
• If the correct waveform is output, transistor Q2/Q3 is
defective.
• If the correct waveform is not output, the pre-driver
IC is defective.

The common driver transistors Q2 and Q3 are attached
the heat sink on the main board. To check their
conditions, check the sawtooth waveform at the emitter
terminals the transistors using an oscilloscope.

Overview

CHAPTER

DISASSEMBLY AND ASSEMBLY

EPSON Stylus Photo 890/1280/1290

Revision C

4.1.1 Precaution for Disassembling the Printer

4.1 Overview
This chapter describes procedures for disassembling the main components of the
EPSON Stylus Photo 890/1280/1290. Unless otherwise specified, disassembly units or
components can be reassembled by reversing the disassembly procedure. Therefore, no
assembly procedures are included in this chapter. Precautions for any disassembly or
assembly procedure are described under the heading “CAUTION” and “CHECK
POINT”. Any adjustments required after disassembling the units are described under
the heading “REQUIRED ADJUSTMENT”.

See the precautions given under the heading “WARNING” and.“CAUTION” in this
section when disassembling or assembling EPSON Stylus Photo 890/1280/1290.
W A R N IN G

Disconnect the power cable before disassembling or
assembling the printer.

If you need to work on the printer with power applied,
strictly follow the instructions in this manual.
Wear protective goggles to protect your eyes from ink. If
ink gets in your eye, flush the eye with fresh water and
see a doctor immediately.
Always wear gloves for disassembly and reassembly to
avoid injury from sharp metal edges.
To protect sensitive microprocessors and circuitry, use
static discharge equipment, such as anti-static wrist
straps, when accessing internal components.
Never touch the ink or wasted ink with bare hands. If ink
comes into contact with your skin, wash it off with soap
and water immediately. If irritation occurs, contact a
physician.

DISASSEMBLY AND ASSEMBLY

Overview

EPSON Stylus Photo 890/1280/1290

C A U T IO N

Revision C

Never remove the ink cartridge from the carriage unless

this manual specifies to do so.
When transporting the printer after installing the ink
cartridge, be sure to pack the printer for transportation
without removing the ink cartridge.
Use only recommended tools for disassembling,
assembling or adjusting the printer.
Observe the specified torque when tightening screws.
Apply lubricants and adhesives as specified. (See
Chapter 6 for details.)
Make the specified adjustments when you disassemble
the printer.
(See Chapter 5 for details.)
When assembling, if an ink cartridge is removed and
needs to be installed again, be sure to install a new ink
cartridge because of the following reasons;
1.Once the ink cartridge mounted on the printer is removed,
air comes in and creates bubbles in the cartridge. These
bubbles clog ink path and cause printing malfunction.
2.If an ink cartridge in use is removed and is reinstalled, ink
quantity will not be detected correctly since the counter to
check ink consumption is cleared.
Because of the reasons above, make sure to return the
printer to the user with a new ink cartridge installed.
Make sure the tip of the waste ink tube is located at
correct position when reassembling the waste ink tube.
Otherwise it will cause ink leakage.

4.1.2 Tools
Table 4-1 lists the tools recommended for disassembling, assembling, or adjusting the
printer. Use only tools that meet these specifications.

Table 4-1. Tool List
Tools

Commercially
Available

Code

(+) Driver No.2

O.K.

B743800200

(+) Driver No.1

O.K.

B743800400

Tweezers

O.K.

B741000100

Hexagon Box Driver
(Paired side: 5.5mm)

O.K.

B741700100

Scale PF unit Assembling tool

EPSON exclusive

1050767

Mounting Plate Scale Attachment
tool

EPSON exclusive

1051765

ROM Extractor No.F749

EPSON exclusive

2035659

Black Empty Cartridge
(Stylus Photo 890/1290)*1

EPSON exclusive

1049785 (#F738)

Color Empty Cartridge
(Stylus Photo 890 only)*2

EPSON exclusive

1049786 (#F741)

Color Empty Cartridge
(Stylus Photo 1290 only)*3

EPSON exclusive

1049787 (#F742)

NOTE:

*1:

Common cartridge with Stylus Photo 870/1270.
Common cartridge with Stylus Photo 870.
*3: Common cartridge with Stylus Photo 1270.
*2:

DISASSEMBLY AND ASSEMBLY

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

4.1.3 Specifications for Screws
Table 4-2 shows screw specifications. During assembly and disassembly, make sure
that the specified types of screws are used at proper locations, referring to the table
below.

Table 4-2. Screw Specifications
Body

---

Name

Size

+Bind S-tite (CBS)

M3x6

+Bind P-tite (CBP)

M3x6

+Bind P-tite (CBP)

M3x8

+Bind P-tite (CBP)

M2.5x5

+Pan head (C.P.)

M3x6

+Pan head B-tite Sems

M3X8

+Bind S-tight Sems (CBS Sems)

M3x6

+Bind S-tight (CBS)

M3x10

+Pan head B-tite Sems

1.7 x 5

DISASSEMBLY AND ASSEMBLY

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

4.1.4 Service Checks After Repair
Before returning the printer after servicing, use the check list below, which enables you
to keep record of servicing and shipping more efficiently.

Table 4-3. Inspection Checklist for Repaired Printer
Category

Component

Item to check

Is Check Required?

Self-test

Is the operation normal?

Checked / Not necessary

On-line test

Was the on-line test successful?

Checked / Not necessary

Printhead

Is ink ejected normally from all nozzles?

Checked / Not necessary

Does the carriage move smoothly?

Checked / Not necessary

Any abnormal noise during movement?

Checked / Not necessary

Any dirt or obstacles around the shaft of carriage
guide?

Checked / Not necessary

Is the CR motor at the correct temperature
(not over heating)?

Checked / Not necessary

Is paper fed smoothly?

Checked / Not necessary

Does paper get jammed?

Checked / Not necessary

Does paper get skew during paper feeding?

Checked / Not necessary

Are papers multi fed?

Checked / Not necessary

Does the PF motor get overheated?

Checked / Not necessary

Abnormal noise during paper feeding?

Checked / Not necessary

Is the paper path clear of all obstructions?

Checked / Not necessary

Are adjusted conditions all right?

Checked / Not necessary

Is lubrication applied to the specified locations?

Checked / Not necessary

Is the quantity of lubrication adequate?

Checked / Not necessary

Carriage mechanism
Printer units

Paper feeding mechanism

Adjustment

Specified adjustment items

Lubricant

Specified lubricated item

Function

ROM version

Newest version:

Checked / Not necessary

Ink cartridges

are the ink cartridges installed correctly?

Checked / Not necessary

Shipment package

Protection conditions during
transport

Is all the pointed parts firmly fixed?

Checked / Not necessary

Others

Attached items

Are all attached items from users included?

Checked / Not necessary

DISASSEMBLY AND ASSEMBLY

Overview

EPSON Stylus Photo 890/1280/1290

Revision C

4.2 Disassembly Procedures
The flowchart below shows procedures for disassembly.

START
START

HOUSING Removal

Circuit Board
Assembly Removal

MOTOR ASSEMBLY,
CR Removal

Printhead Unit
Removal

Panel Unit Removal

DE Unit Removal

TRAY, ABSORBER
ASSEMBLY Removal

PE Sensor Unit
Removal

Ink Unit Removal

MOTOR ASSEMBLY,
ASF Removal

ASF Unit Removal

BOARD ASSEMBLY,
ENCODER Removal

SHAFT, ROLLER,
LD Removal

ROLLER ASSEMBLY,
LD, RIGHT/LEFT

Carriage Unit
Removal

ROLLER, PF Removal

MOTOR ASSEMBLY,
PF Removal

Figure 4-1. Flowchart of Disassembly

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.1 HOUSING Removal
Since the printer mechanism itself structures the bottom part, it appears just by
removing HOUSING.
1.

Open the printer cover and set the PG adjustment lever to (+).

Remove the four screws (CBS, 3x10) securing HOUSING, and remove it.
CBS (3x10)

C A U T IO N

C H E C K
P O IN T

When removing HOUSING, push it to the rear a little first, and
then lift it up.

When installing HOUSING, make sure the PG
adjustment lever is set to (+).

After assembling HOUSING, ensure the head FFC is
not caught in the back of HOUSING.

CBS (3x10)

Figure 4-2. HOUSING Removal

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.2 Circuit Board Assembly Removal

Disconnect all cables from the connectors on the main board and power supply
board.

Since BOARD ASSEMBLY, MAIN and BOARD ASSEMBLY, POWER SUPPLY
are built in a bracket separated from the Printer Mechanism, they can be removed as
one unit.

CN1(AC Source connector on the power supply board)

Remove HOUSING. (Refer to Section 4.2.1.)

CN6 (ASF sensor)

Remove the screws (CBS, 3x6) securing the M/B Unit to the printer mechanism.
Refer to Figure 4-3.

CN15 (ASF/Pump motor)

CN5 (PE sensor)

CN8 (Head FFC)

Stylus Photo 890: 7 screws
Stylus Photo 1290: 8 screws
COVER, CABLE

CN9 (Head FFC)
CN19 (from the secondary side of the PS board)
COVER,

CBS (3x6)

CN11 (Panel Unit)
CN12 (PF Encoder Sensor)

CBS (3x6)

After removing BOARD ASSY, MAIN without cables, remove SHIELD PLATE,
M/B Unit from the printer mechanism.

CBS (3x6)

Figure 4-3. Removing the M/B Shield Plate
3.

Lifting up SHIELD PLATE, M/B Unit a little, remove COVER, CABLE and
COVER, CABLE; B together with the cables.

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

C378PSB/PSE
Board

C A U T IO N

CBS (3x6)

C393MAIN Board

Since the CN10 is a locking connector, be sure to unlock it
before disconnecting the cables.

Since the head FFCs have the same number of pins, be sure to
connect them to the right connectors.

When connecting the cables, connect them to the correct
connectors paying attention to the number of the pins.
A D J U S T M E N T
R E Q U IR E D

SHIELD PLATE, M/

Earth Plate

Earth Plate
CP (3x6)

Be sure to perform the following adjustments when you replace
the Main Board:
1. Head ID input (Refer to Chapter 5.)
2. Bi-D adjustment (Refer to Chapter 5.)
3. USB ID input (Refer to Chapter 5.)
Be sure to replace the following parts when replacing the Main
Board:
1. Waste ink absorbers
2. Ink cartridge (BK & Color)
Note this part replacement is required since several counters stored
in the EEPROM are lost with a Main board replacement.

Figure 4-4. Circuit Board Removal
6.

For removing each circuit board assembly from the M/B Shield Plate, remove the
screws securing each unit and shield plate.

C393MAIN Board: Total 10 screws
7 screws:
3 screws:

CBS (3x6)
CP (3x6)

C378PSB/PSE Board: Total 4 screws (CBS, 3x6)

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.3 Panel Unit Removal
C H E C K
P O IN T

When installing SHIELD PLATE, M/B to the printer
mechanism, set the cables, COVER CABLE, and COVER,
CABLE; B as shown in the figure below:

Remove HOUSING. (Refer to Section 4.2.1.)

Remove the harness for the Panel Unit from the frame in the printer mechanism.
C H E C K
P O IN T

COVER,

When installing the harness to the printer mechanism, be sure to
stick it along the marking line on the frame.

COVER, CABLE; B
Marking Line

Harness

Opening
Opening

Figure 4-5. Setting the Cables to the Cable Covers
3.
4.

DISASSEMBLY AND ASSEMBLY

Remove 4 screws (CBS, 3x6) securing the Panel Unit together with HOUSING,
REINFORCING, RIGHT to the printer mechanism.
Release the hook for the for HOUSING, REINFORCING, RIGHT from the square
cutout in the printer mechanism.

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

Remove 1 screw (CBP, 3x8) securing Panel Unit to the printer mechanism and
release the pins fit in the printer mechanism.
Then remove the Panel Unit along with HOUSING, REINFORCING, RIGHT.

Remove 2 screws (CBP, 3x8) securing SHIELD PLAT, PANEL to the Panel Unit,
and then remove SHIELD PLATE, PANEL.

CBS (3x6)
SHIELD PLATE, PANEL

CBP (3x8)
CBP (3x8)

Pins
BOARD ASSEMBLY, PANEL

Cup P-Tite (3x6)
Harness

Panel Unit

Figure 4-7. BOARD ASSEMBLY, PANEL Removal

CBS (3x6)

7.
8.

Remove screws (CBP, 3x8 & Cup P-Tite, 3x6) securing BOARD ASSEMBLY
PANEL to the Panel Unit.
Disconnect the harness from BOARD ASSEMBLY, PANEL.

C A U T IO N
HOUSING,
REINFORCING, RIGHT

CBP (3x8)

Cutout

When removing the Panel Unit, watch out for the stacker
assembly. Since the stacker assembly is attached to the Panel
Unit and HOUSING, PANEL, LEFT, if you remove the Panel
Unit, the stacker assembly will also come off.

Figure 4-6. Panel Unit Removal

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.4 Printhead Unit Removal
1.

Remove HOUSING. (Refer to Section 4.2.1.)

2.
3.
4.

Set the PG lever to the rear.
Using tweezers, put the CR lock lever down to unlock the carriage.
Release the three hooks (A, B, C) fixing HOLDER, CABLE to the carriage, and
remove HOLDER, CABLE.

HEAD
CBP (3x6)

Head FFC
HOLDER, CABLE

C
B
CBB (W2)
M2.5x6

Figure 4-10. HEAD Removal
Figure 4-8. Printhead Removal
5.
6.

Disconnect the head FFC from the connector on the printhead.
Remove the FFC from the BOARD ASSEMBLY, ENCODER.

7.
8.

Move the carriage to the left end of the printer manually.
Remove 2 screw (CBP, 3x6 & CCB Sems W2, 2.5x6) securing the printhead to the
carriage, and remove the printhead.
A D J U S T M E N T
R E Q U IR E D

BOARD ASSEMBLY,
ENCODER

When you replace the Printhead Unit, perform the following
adjustments:
1. Initial ink charge (Refer to Chapter 5)
2. Head ID Input (Refer to Chapter 5)
3. Bi-D Adjustment (Chapter 5)

FFC

Figure 4-9. Encoder FFC Removal

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.5 TRAY, ABSORBER ASSEMBLY Removal

Remove HOUSING. (Refer to Section 4.2.1.)

2.
3.

Remove the Panel Unit. (Refer to Section 4.2.3.)
Remove 2 screws (CBS, 3x6) securing HOUSING, PANEL, LEFT to the front left
part of the printer mechanism.

Remove 2 screws (CBS, 3x6) securing HOUSING, SUB, LEFT to the printer
mechanism.
Release 3 hooks (2 at the bottom and 1 in the front) fixing HOUSING, SUB, LEFT
to the printer mechanism, and remove HOUSING, SUB, LEFT.
Remove 1 or 2 screws (CBP, 3x6: Stylus Photo 890 1 screw, Stylus Photo 1290 2
screws) securing PAPER GUIDE, LOWER to TRAY, ABSORBER ASSEMBLY
at the middle of the printer mechanism, and then remove PAPER GUIDE,
LOWER.
Hook in TRAY,
ABSORBER

CBS (3x6)

FRAME,

CBP (3x8)
CBP (3x8)

HOUSING, PANEL, LEFT

Figure 4-11. HOUSING, PANEL, LEFT Removal
4.
5.

Remove 1 screw (CBP, 3x8) securing HOUSING, PANEL, LEFT to the
HOUSING, SUB, LEFT.
Release the pin fixing HOUSING, PANEL, LEFT to the printer mechanism, and
then remove HOUSING, PANEL, LEFT toward the front.

C A U T IO N

ABSORBER,
WASTE INK,
LARGE/SMALL

TRAY, ABSORBER

CBP (3x8)

When removing HOUSING, PANEL, LEFT, watch out for the
Stacker Assembly. Since the Stacker Assembly is fixed by the
Panel Unit and HOUSING, PANEL, LEFT, it will come off as
HOUSING, PANEL, LEFT is removed.

SPACER, TRAY
PAPER GUIDE,
LOWER

Figure 4-12. TRAY, ABSORBER ASSEMBLY Removal

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

Removing 1 screw (CBP, 3x8) securing TRAY, ABSORBER ASSEMBLY to the
right part of the printer mechanism.
10. Remove SPACER, TRAY securing TRAY, ABSORBER to the left side of the
printer mechanism, and then remove TRAY, ABSORBER by moving it
downward.
11. Remove ABSORBER, WASTE INK, LARGE/ SMALL from TRAY,
ABSORBER.
C A U T IO N

A D J U S T M E N T
R E Q U IR E D

When installing TRAY, ABSORBER ASSEMBLY to the
printer mechanism, make sure they are securely jointed with
SPACER, TRAY. Refer to Figure 4-12.
Be careful not to damage SCALE, PF, (loop scale) when
installing SPACER, TRAY.
When installing ABSORBER ASSEMBLY, make sure the Ink
Tube is correctly placed in the ABSORBER ASSEMBLY. If
not, it may cause an ink leakage.

If you replace TRAY, ABSORBER ASSEMBLY, be sure to
perform the Waste ink counter reset operation. (Refer to
Chapter.)
When installing TRAY, ABSORBER ASSEMBLY to the
printer mechanism, make sure it securely joins to FRAME,
RIGHT by its hook in the right.

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.6 Ink Unit Removal
NOTE: Ink Unit consists of the Pump Unit, Cleaner Head, and Cap Assembly.

Remove HOUSING. (Refer to Section 4.2.1.)

2.
3.

Remove the Panel Unit. (Refer to Section 4.2.3.)
Remove SHEET, INK STOPPER.

FRAME, MIDDLE

CBS (3x6)

FRAME, TOP
CBS (3x6)

SHEET, INK STOPPER

Ink Unit

CBS (3x6)

Figure 4-13. SHEET, INK STOPPER Removal
4.
5.
6.
7.
8.

Remove TRAY, ABSORBER ASSEMBLY. (Refer to Section 4.2.5.)
Remove the three screws (CBS, 3x6) securing the Ink Unit to the FRAME,
MIDDLE.
Remove 3 screws (CBS, 3x6) securing the Ink Unit to FRAME, TOP. Then
remove the Ink System Assembly.
Release the hook fixing the Cap Assembly to the Ink Unit, and then remove the
Cap Assembly.
Disconnect the tube from the Cap Assembly.

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

Hook in the Cap Assembly

Figure 4-14. Ink Unit Removal

EPSON Stylus Photo 890/1280/1290

C A U T IO N

Revision C

When handling CLEANER, HEAD, note the points below:

Do not touch CLEANER, HEAD with your bare hands.
Ware gloves or use tweezers.

Do not smear CLEANER, HEAD with oil or grease.
When installing CLEANER, HEAD, set the rubber side
(black side) facing to the right.
When replacing the Cap Assembly, do not touch its sealing
rubber part.
When assembling, make sure the Ink Tube is correctly placed
at the correct position. If not, it may cause an ink leakage.

About 45°

C H E C K
P O IN T

When assembling the Cap Assembly to the Ink System
Assembly, make sure ABSORBER, SLIDER, CAP is assembled
in the cap assembly. ABSORBER, SLIDER, CAP should be set
as shown in Figure 4-15 in advance.
Check that the ink tube is securely connected to the connection
part of the Cap Assembly. (See Figure 4-16.) Also, make sure
the tube is not bent or crushed by the connection area. (See
Figure 4-17.)
Check that the ink tube is placed correctly in the Ink System.
(See to Figure 4-16.) Pay special attention in connecting the tube
to the Pump Unit. Connect the tube by strictly following the
instruction given in Figure 4-18.
When assembling, be careful not to crush or leave any stress on
the ink tube that connects the Pump Unit and Cap Assembly.
Also,
After installing the Pump Unit, ensure that CLEANER, HEAD
moves back and forth with rotation of the gear.

About 60-90°

ABSORBER,
SLIDER, CAP

Figure 4-15. Setting the ABSORBER, SLIDER, CAP

Cap Assembly

Pump Unit
Ink Tube

Figure 4-16. Ink Tube Installation (1)

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

Tube is not stretched out.

Tube is not bent.

Figure 4-17. Ink Tube Installation (2)

Pump Unit
Marking line on the tube

2 mm

Figure 4-18. Connecting the Tube to the Pump Unit

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.7 MOTOR ASSEMBLY, CR Removal
1.

Remove HOUSING. (Refer to Section 4.2.1)

Using tweezers or a small screw driver, put the carriage lock lever down to the
front, and then slide the carriage to the middle of the printer mechanism.
Push the HOLDER, PULLEY, DRIVEN to loosen the CR Timing Belt, and then
disengage the timing belt from the pulley on the CR motor.

SCALE,

HOLDER, PULLEY,
DRIVEN

MOTOR ASSEMBLY, CR

FRAME, TOP

Timing Belt

CP (3x6)

Figure 4-20. MOTOR ASSEMBLY, CR Removal
Pulley in MOTOR
ASSEMBLY, CR

C A U T IO N

Figure 4-19. Timing Belt Removal

When pushing HOLDER, PULLEY, DRIVEN, be careful not
to damage SCALE, PF (loop scale).

When releasing the timing belt, be careful not to damage
SCALE, CR (linear encoder).

4.
5.

When removing MOTOR ASSEMBLY, CR, be sure not to hit

Disconnect the connector for MOTOR ASSEMBLY, CR from the connector on
the main board. (Refer to Section 4.2.2.)
Remove 2 screws (CP, 3x6) securing MOTOR ASSEMBLY, CR to FRAME,
TOP, and then remove MOTOR ASSEMBLY, CR.

the edge of the installation hole with the motor’s pulley.

A D J U S T M E N T
R E Q U IR E D

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

When removing MOTOR ASSEMBLY, CR, execute Bi-D
adjustment. See “Bi-Directional Adjustment“on page 133.

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.8 MOTOR ASSEMBLY, ASF Removal

BRACKET, MOTOR, ASF

Remove HOUSING (Refer to Section 4.2.1.)

Remove the harness for MOTOR ASSEMBLY, ASF from the main board. (Refer
to Section 4.2.2.)
Lower LEVER, PLANETARY UNIT.

MOTOR ASSEMBLY, ASF

LEVER, PLANETARY

CBP (3x8)

[Lever is held up.]

[Lever is lowered.]

Figure 4-22. MOTOR ASSEMBLY, ASF Removal
Figure 4-21. Setting LEVER, PLANETARY UNIT
4.

Remove 2 screws (CBP, 3x8) securing MOTOR ASSEMBLY, ASF to
BRACKET, MOTOR, ASF. Then push the motor assembly to the rear and then to
the right to remove it.

C H E C K
P O IN T

When installing MOTOR, ASSEMBLY, ASF5, make sure the
DE unit and LEVER, PLANETARY UNIT are set as shown
below:
DE Unit (BRACKET,
MOTOR, ASF)
LEVER,
PLANETARY UNIT

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.9 DE Unit Removal

5.
6.

Remove HOUSING (Refer to Section 4.2.2.)

2.
3.
4.

Remove MOTOR ASSEMBLY, CR. (See Section 4.2.7.)
Remove the Ink Unit. (Refer to Section 4.2.6.)
Remove 2 screws (CBS, 3x6) securing SHEET, PROTECTION INK to FRAME,
BOTTOM, and then remove the sheet.

Remove MOTOR, CR. (Refer to Section 4.2.7.)
Loosen 1 (CBS, 3x6) securing the LEVER ASSEMBLY, COMBINATION
GEAR to FRAME, MIDDLE.
Remove the tension sprig (7.37) hung to FRAME MIDDLE and LEVER
ASSEMBLY, COMBINATION GEAR, and then remove TENSION BELT,
PUMP, TRANSMISSION from the combination gear (12, 22.92).

TENSION SPRING, 7.37
LEVER ASSEMBLY,
COMBINATION GEAR

FRAME, TOP

COMBINATION
GEAR, 12, 22.92

SHEET, PROTECTION, INK

FRAME, MIDDLE
CBS (3x6)
FRAME, BOTTOM

TENSION BELT, PUMP,
TRANSMISSION

CBS (3x6)

Figure 4-23. SHEET, PROTECTION, INK Removal

DISASSEMBLY AND ASSEMBLY

Figure 4-24. TENSION BELT, PUMP, TRANSMISSION Removal

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290
8.

Revision C

Remove the tension spring (0.618) attached to the LEVER, DE, LOCK and DE
Unit.

Release the hook in the DE Unit (BRACKET, MOTOR, ASF) securing LEVER,
DE, LOCK. Then push the lever out to the right to release it from the installation
hole in the DE Unit and remove it.

LEVER, DE, LOCK

LEVER, DE,

Locking position

TENSION SPRING, 0.618

LEVER, DE, LOCK

Figure 4-25. TENSION SPRING, 0.618 Removal

Figure 4-26. LEVER, DE, LOCK Removal

C A U T IO N

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

When removing LEVER, DE, LOCK, be careful not to break the
hook in the DE Unit.

EPSON Stylus Photo 890/1280/1290

Revision C

10. Remove the CBS screw (3x6) and CBP (3x8) screw securing the DE unit to
FRAME, MIDDLE and FRAME, TOP, respectively. Then remove DE unit.

C H E C K
P O IN T

SCALE, CR

Check that all gears are assembled in the DE unit correctly as
shown in the figure below:
Combination Gear,
12, 22.4

CBP (3x8)

Retaining Ring, D8.8

Felt, D3.6
Combination Gear,
17.19, 25.6

LEVER, PLANETARY UNIT

Combination
Gear, 14, 28

BRACKET,
MOTOR, ASF

Figure 4-28. Parts Layout in DE Unit
Before assembling MOTOR ASSEMBLY, ASF to the DE Unit,
set LEVER, PLANETARY UNIT to the pump side. (See Figure
4-28.)
Set TENSION BELT, PUMP, TRANSMISSION to the 17.19
gear of the Combination Gear (17.19, 25.6) before securing the
DE unit to FRAME, MIDDLE.

CBP (3x6)

Figure 4-27. DE Unit Removal

Combination Gear,
17.19, 25.6

11. Remove the harnesses from the harness clamp in the DE Unit.

DE Unit

C A U T IO N

Be sure to remove the screw (CBP, 3x8) carefully so you do not
damage the linear encoder (SCALE, CR).

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

TENSION BELT, PUMP,
TRANSMISSION

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.10 ASF Unit Removal
1.

Remove HOUSING. (Refer to Section 4.2.1.)

Remove the following cables from the cable clamp in the left side of the ASF
Assembly.

ASF HP sensor cable
MOTOR ASSEMBLY, PF cable
3.
4.
5.

Disconnect the ASF HP sensor cable from the connector on the sensor.
Remove the head FFC from the ASF Unit.
Remove 1 screw (CBS Sems, 3x6) and SHAFT, MOUNT, CR that are securing
the ASF Unit to FRAME, BOTTOM at the rear right and rear left, respectively.

ASF viewed from the right

ASF viewed from the left

Paper Support Sub Unit

Figure 4-30. ASF Unit Removal (2)

Hook in the ASF Unit

CBS Sems (3x6)

SHAFT, MOUNT, CR

Figure 4-29. ASF Unit Removal (1)
6.

Tilting the paper support sub unit, release the hook fixing the ASF Unit to
FRAME, BOTTOM, and remove the ASF Unit toward the rear.

Figure 4-31. ASF Unit Removal (3)

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

EPSON Stylus Photo 890/1280/1290

C H E C K
P O IN T

Revision C

When installing the ASF assembly to FRAME, BOTTOM, make
sure the protrusion on the ASF fits in the installation hole in
FRAME, MIDDLE. (See Figure 4-32.)
When installing the ASF Unit, ensure the spur gear 32 in the
ASF Unit and the inner gear of the combination gear (14, 28) in
the DE Unit are meshed. (See Figure 4-32.)
When installing the ASF Unit, make sure the Hopper Assembly
is raised.

C H E C K
P O IN T

When connecting the cables for ASF HP sensor and MOTOR
ASSEMBLY, PF, set them in the cable clamp in the rear left part
of the ASF Unit as shown in the figure below:

Cable Clamp

Stylus Photo 890
Combination Gear
14, 28

Gear 32

Installation Hole

Protrusion

Stylus Photo 1290
Combination Gear
14, 28

Gear 32

Installation Hole

Protrusion

Figure 4-32. Check Points in ASF Assembly

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

100

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.10.1 SHAFT, ROLLER, LD Removal
1.

Remove the ASF Unit. (Refer to Section 4.2.10.)

Releasing the hook on Gear, 32, remove the gear from SHAFT, ROLLER, LD.

BUSHING, FIXING,
SHAFT, LEFT
E-Ring

HOLDER, SHEET,
PAPER FEED

Hook

Stylus Photo 890

Stylus Photo 1290

SPUR GEAR, 32

LEVER, HOPPER,
RELEASE

Figure 4-34. BUSHING, FIXING, SHAFT/E-Ring Removal
6.
7.

Move SHAFT, ROLLER, LD to the left.
Release the fixing tab in WHEEL, DETECTOR, and then remove WHEEL,
DETECTOR from SHAFT, ROLLER, LD.

Figure 4-33. SPUR GEAR, 32 Removal
WHEEL, DETECTOR

3.
4.
5.

Fixing Tab

Remove LEVER, HOPPER, RELEASE from the right end of SHAFT, ROLLER,
LD.
Remove HOLDER, SHEET, PAPER FEED from the right and left LD roller units.
Move the left LD roller assembly to the middle and then:
Stylus Photo 890:

Remove BUSHING, FIXING, LEFT from the left end of
SHAFT, ROLLER, LD

Stylus Photo 1290:

Remove the E-ring from the left end of SHAFT, ROLLER,
LD.

SHAFT, ROLLER, LD

Figure 4-35. WHEEL, DETECTOR Removal

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

101

EPSON Stylus Photo 890/1280/1290
8.

Revision C

Release the Hopper Assembly from the pin in the top left corner of ASF, FRAME;
B in the order indicated with arrows in the figure below.

Pin in FRAME, ASF;B

10. Using tweezers, remove the left and right compression springs (1.961) from the
Hopper Assembly and FRAME, ASF; B. (See Figure 4-38.)
11. Lifting up the right edge of SHAFT, ROLLER, LD a little, remove the shaft by
pulling it out to the right along with LD rollers. (See Figure 4-38.)
12. Remove the left LEVER, HOPPER, RELEASE from SHAFT, ROLLER, LD. (See
Figure 4-38.)
13. Remove the LD roller assemblies from SHAFT, ROLLER, LD. (See Figure 4-38.)

Hopper Assembly
Step 1

Step 2

Figure 4-36. Hopper Assembly Removal (1)
9.

Releasing the Hopper Assembly from the protrusion at the top right edge of
FRAME, ASF; B, detach the arm of the Hopper Assembly from the square cutout
in the right frame of FRAME, ASF; B.

Hopper Assembly

Cutout in FRAME, ASF; B

Figure 4-37. Hopper Assembly Removal (2)

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

102

EPSON Stylus Photo 890/1280/1290

LEVER, HOPPER, RELEASE

Revision C

WHEEL
DETECTOR
Hopper Assembly

BUSHING, FIXING, SHAFT, LEFT
FRAME, ASF;B
COMPRESSION SPRING, 1.961

Left LD Roller Assembly
SHAFT,
ROLLER, LD
COMPRESSION
SPRING, 1.961

LEVER, HOPPER, RELEASE
Gear, 32

Right LD Roller Assembly

Figure 4-38. Hopper Assembly Removal/ASF Unit Disassembly

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

103

EPSON Stylus Photo 890/1280/1290

C H E C K
P O IN T

Revision C

While assembling the ASF Unit, be careful not to smear any

parts with oil on the cam parts. If oil gets other parts, it should
be wiped off.
When installing LEVER, HOPPER, RELEASE, set it in the
correct direction. (See Figure 4-39.)
Be sure to attach the following parts to SHAFT, ROLLER, LD
securely. (See Figure 4-38.)
- BUSHING, FIXING, SHAFT, LEFT (white plastic part)
- WHEEL, DETECTOR (black plastic part)
When installing the LD Roller Assemblies to SHAFT,
ROLLER, LD, make sure the black one (right LD Roller
Assembly) goes to the right.
When setting the right and left LD Roller Assemblies, align
their grooves with the rail rib in FRAME, ASF; B. (See Figure
4-40.)

LEVER, HOPPER,
RELEASE

Figure 4-39. LEVER, HOPPER, RELEASE Installation

Groove in the LD Roller
Assembly
Rail Rib in FRAME, ASF; B

Figure 4-40. LD Roller Assembly Installation (1)

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

104

EPSON Stylus Photo 890/1280/1290

C H E C K
P O IN T

Revision C

When installing the edge guide to the left LD Roller Assembly,
ensure that the rib in the LD Roller Assembly fits correctly into
the groove in the edge guide. (See Figure 4-41.)
Make sure that the right LD Roller Assembly is fixed with the
hook in FRAME, ASF; B. You can check its condition from the
back of the ASF Unit. (See Figure 4-42.)
Before assembling the ASF Unit, hold each compression spring
(1.961) with the hook of the spring bearing in the Hopper
Assembly. Then, after attaching the Hopper Assembly to
FRAME, ASF; B, release the springs from the hooks through
the cutouts in the back of the frame. (See Figure 4-43.)

Hook in the FRAME, ASF; B

Figure 4-42. Hook Fixing the LD Roller Assembly

Groove in the Edge Guide

Hooks

Compression
Spring 1.961

Rib in the LD Roller Assembly

Figure 4-41. LD Roller Assembly Installation (2)
Figure 4-43. Holding Compression Spring with the Hooks

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

105

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.10.2 ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal
1.

Remove the ASF Unit. (Refer to Section 4.2.10.)

2.
3.

Remove SHAFT, ROLLER, LD. (Refer to Section 4.2.10.1.)
Release the hooks in COVER, ROLLER, LD, RIGHT/LEFT (two hooks in each)
fixing itself to LD ASSEMBLY, RIGHT/LEFT, and then remove the COVER,
ROLLER, LD, RIGHT/LEFT.
Release the hooks in ROLLER ASSEMBLY, LD, RIGHT/LEFT (two hooks in
each) securing itself to LD ASSEMBLY, RIGHT/LEFT. Then remove ROLLER
ASSEMBLY, LD, RIGHT/LEFT.

Compression
Spring, 1.961

COVER,
ROLLER, LD,
COVER, ROLLER,
LD, LEFT

Compression
Spring, 1.961

LD ASSY., LEFT
ROLLER ASSY.,
LD, LEFT
ROLLER ASSY,
LD, RIGHT

Hooks in COVER,
ROLLER, LD, LEFT

LD ASSY., RIGHT

Figure 4-45. ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal

C A U T IO N
Hooks in ROLLER
ASSEMBLY, LD, LEFT

Do not touch the surface of the ROLLER ASSEMBLY, LD with
your bare hands.

Figure 4-44. Hooks to Release

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

106

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.11 Carriage Unit Removal

Remove HOUSING. (Refer to Section 4.2.1)

2.
3.

Disconnect the head FFC from the printhead. (Refer to Section 4.2.4.)
Remove the Tension Spring 1.494 hanging SCALE, CR to the left side of
FRAME, TOP. Then remove SCALE, CR.

Push PULLEY, DRIVEN down and remove it from HOLDER, PULLEY,
DRIVEN.

HOLDER, PULLEY,

TENSION SPRING, 1.494
SCALE, CR
PULLEY, DRIVEN

Figure 4-47. PULLEY, DRIVEN Removal
6.
7.

Remove the Timing Belt from PULLEY, DRIVEN.
Remove LEVER, PG by releasing its hooks from the cutouts in the right side of
FRAME, TOP. Then remove the LEVER, PG.

Figure 4-46. Remove the Tension Spring 1.491& CR Encoder Slit
4.

FRAME, TOP

LEVER, PG

Loosen the Timing Belt by pushing HOLDER, PULLEY, DRIVEN and disengage
the belt from the pulley of the CR motor. (Refer to Figure 4-20.)

Hooks

Figure 4-48. LEVER, PG Removal

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

107

EPSON Stylus Photo 890/1280/1290
8.

Revision C

Remove the torsion spring (63.7) hung onto FRAME, TOP and LEVER, PG.
Notch in BUSHING,
PARALLELISM
ADJUSTMENT,
BUSHING, PARALLELISM
ADJUSTMENT, RIGHT

FRAME, TOP

CBS Tite Sems R2

Leaf Spring

LEVER, PG, SUB
TORSION SPRING, 63.7

Figure 4-50.
BUSHING, PARALLELISM ADJUSTMENT, RIGHT Removal
Figure 4-49. LEVER, PG, SUB Removal
9. Remove LEVER, PG from LEVER, PG, SUB.
10. Release the hook fixing LEVER, PG, SUB to SHAFT, CR, GUIDE. Then remove
LEVER, PG, SUB and 1 leaf spring (6.2x0.15x11).
11. Remove 1 screw (CBS Tite Sems R2, 3x6) securing BUSHING, PARALLELISM
ADJUSTMENT, RIGHT to FRAME, TOP.
12. Rotate BUSHING, PARALLELISM ADJUSTMENT, RIGHT to align its notch
with the cutout in FRAME, TOP. Then remove the bushing.

13. Remove SHAFT, CR, GUIDE from FRAME, TOP together with the Carriage
Unit.
14. Remove SHAFT, CR, GUIDE and the oil pad from the Carriage Unit.

C A U T IO N

A D J U S T M E N T
R E Q U IR E D

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

Do not touch SCALE, CR (linear scale) with your bare hands,
because if its surface is dirty or damaged, it will cause the
carriage to operate abnormally.
Do not touch SCALE, PF (loop scale) with your bare hands,
because if its surface is dirty or damaged, it will adversely
affect paper feeding accuracy.
If you replace the Carriage Unit, perform the Platen Gap
Adjustment.

108

EPSON Stylus Photo 890/1280/1290

C H E C K
P O IN T

Revision C

When installing the Leaf Spring (6.2x 0.15x11), set it with its
convex side facing inward. Refer to Figure 4-49.
After setting SCALE, CR through the slot for the sensor in the
Carriage Unit, ensure that it is not in contact with either side of
the slot by viewing them from the side.

4.2.12 BOARD ASSEMBLY, ENCODER Removal
1.

Remove the head FFC. (Refer to Section 4.2.4.)

Pushing BOARD ASSEMBLY, ENCODER (linear encoder) to the rear, remove it
upward.

Slit for the sensor
BOARD ASSEMBLY, ENCODER
Carriage Unit

SCALE, CR

When installing SHAFT, CR, GUIDE, make sure that the oil
pad is set in the correct position.
Carriage Unit

Figure 4-51. BOARD ASSEMBLY, ENCODER Removal

C A U T IO N

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

When removing BOARD ASSEMBLY, ENCODER, be sure not
to force it out using a screw driver or equivalent. Otherwise, the
sensor mounting position in the Carriage Unit may be damaged.
When installing BOARD ASSEMBLY, ENCODER, be careful
not to mar SCALE, CR.
Make sure SCALE, CR and the sensor are not in contact.

109

EPSON Stylus Photo 890/1280/1290

Revision C

4.2.13 ROLLER, PF Removal

Remove HOUSING. (Refer to Section 4.2.1)

2.
3.
4.
5.
6.

Remove the Panel Unit. (Refer to Section 4.2.3.)
Remove HOUSING, PANEL, LEFT. (Refer to Section 4.2.5.)
Remove the ASF Unit. (Refer to Section 4.2.10.)
Remove the Carriage Unit. (Refer to Section 4.2.11.)
Remove the three screws (CBS, 3x6) securing GUIDE PLATE, CR Unit to
FRAME, TOP. Then remove GUIDE PLATE, CR Unit.

Remove PAPER GUIDE, RIGHT Unit and the five PAPER GUIDE, UPPER Unit
(eight for Stylus Photo 1290) from FRAME, TOP in the manner described below:

PAPER GUIDE, UPPER Unit
Remove the torsion spring (117.6). Then remove the unit to the rear.

PAPER GUIDE, RIGHT Unit
Remove the torsion spring (117.6). Then remove the unit to the front.

PAPER GUIDE,
UPPER Unit

PAPER GUIDE,
RIGHT Unit

GUIDE PLATE, CR Unit

CBS (3x6)

TORSION SPRING, 117.6

Figure 4-53. PAPER GUIDE, UPPER/RIGHT Unit Removal
8.

Release the hook securing PAPER GUIDE, LEFT* to FRAME, TOP. Then shift
the unit to the left first, and remove it to the rear.
* PAPER GUIDE, LEFT is not assembled in Stylus Photo 1290.

Figure 4-52. GUIDE PLATE, CR Unit Removal

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

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Revision C

Remove the three screws (CBS, 3x6) securing FRAME, TOP to the printer
mechanism. Then remove FRAME, TOP.
10. Remove the three screws (CBS, 3x6) securing FRAME, PAPER EJECT Unit to
the printer mechanism, and then remove FRAME, PAPER EJECT Unit.

11. Remove PAPER GUIDE, FRONT from ROLLER, PF by releasing its two Ushaped forks fixing ROLLER, PAPER EJECT.
12. Remove CONTACT SPRING, PAPER EJECT hung to FRAME, LEFT and
ROLLER, PAPER EJECT.

CBS (3x6)
PAPER GUIDE,
ROLLER,

U-Shaped
Forks

FRAME, PAPER
EJECT Unit

U-Shaped
Forks

CONTACT
SPRING, PAPER
FRAME, FRONT

ROLLER, PAPER

CBS (3x6)

Figure 4-54. FRAME, FRONT/FRAME, PAPER EJECT Removal

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

Figure 4-55. PAPER GUIDE, FRONT Removal

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Revision C

13. Raise 2 bushings (6) attached to the right and left ends of ROLLER, PAPER
EJECT to release them from FRAME, LEFT and FRAME, MIDDLE. Them
remove ROLLER, PAPER EJECT.

16. Unhook BUSHING, 12, LEFT attached to the left end of ROLLER, PF and then
turn the bushing until it is aligned with the cutout in FRAME, LEFT.
17. Release ROLLER, PF from the hook in PAPER GUIDE, REAR, and then remove
ROLLER, PF.

CONTACT SPRING, PF
SPUR GEAR, 76
BUSHING, 6

Hook in PAPER
GUIDE, REAR

ROLLER, PAPER
BUSHING, 12, LEFT

Figure 4-56. ROLLER, PAPER EJECT Removal

ROLLER, PF

14. Remove 1 screw (CBS, 3x6) securing BRACKET, BOARD ASSEMBLY to
FRAME, LEFT together with BOARD ASSEMBLY, ENCODER (PF Encoder
Sensor). Then remove BRACKET, BOARD ASSEMBLY.

Figure 4-58. ROLLER, PF Removal
BRACKET, BOARD
ASSEMBLY

C A U T IO N

During disassembly/assembly, be careful not to bend or damage
SCALE, PF.

Do not touch SCALE, PF with your bare hands. Also, be careful
not to damage its surface since it is coated with special material
to improve accuracy in paper feeding.
Avoid touching the tooth plane of SPUR GEAR 76 attached to
the left end of ROLLER, PF. (See Figure 4-58.)

CBS (3x6)

Figure 4-57. PF Encoder Removal
15. Remove CONTACT SPRING, PF hung to ROLLER, PF and FRAME, BOTTOM.
(Refer to Figure 4-56.)

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

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Revision C

4.2.13.1 SCALE, PF Installation
C H E C K
P O IN T

When installing PAPER GUIDE, RIGHT to FRAME, TOP
with the torsion spring, insert PAPER GUIDE, RIGHT Unit
from the front making sure the PE sensor lever is set in the hole
of the paper guide.

SCALE, PF (Loop Scale)
BRACKET, SCALE
TAPE, D50 (Double-sided adhesive tape)

TORSION SPRING,
117.6

PE Sensor Lever

This section describes how to install the following parts:

PAPER GUIDE,
RIGHT Unit

Get “Mounting Plate Scale Attachment tool”. (AS Tool code: 1051765)

2.
3.

Place BRACKET, SCALE on the tool with its taped side facing upward.
Peel off the protection sheet from the tape on BRACKET, SCALE.

BRACKET,

Protection Sheet

Figure 4-59. PAPER GUIDE, RIGHT Installation
When mounting the torsion springs (117.6) to PAPER GUIDE,
UPPER / PAPER GUIDE, RIGHT, fit the arm of each torsion
spring (117.6) in the groove of the corresponding paper guide.
When installing CONTACT SPRING, PF, fit the loop of the
spring in the groove near the left end of ROLLER, PF.
If you replace SCALE, PF (loop scale) or SPUR GEAR (76),
you are required to install a new SCALE, PF using the specified
tools. (Refer to the next section.)

DISASSEMBLY AND ASSEMBLY

Tool (Code: 1051765)

Figure 4-60. Pre-operation for BRACKET, SCALE Installation

Disassembly Procedures

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EPSON Stylus Photo 890/1280/1290
4.

Revision C

Set SCALE, PF onto BRACKET, SCALE with its front side facing downward.

Remove the base sheet of TAPE, D50 and stick it to SCALE, PF.

TAPE, D50

Protection Sheet

Set the scale’s front side
facing downward.

Protection Sheet

SCALE,
SCALE,

Tool (Code: 1051765)

Figure 4-62. TAPE, D50 Installation
Tool
(Code: 1051765)
Tool (Code: 1051765)

C A U T IO N

If TAPE, D50 is not aligned with the circle printed on SCALE,
PF, it should not be a problem.

Figure 4-61. Attaching SCALE, PF

C A U T IO N

Do not touch the following areas:

Peel off the protection sheet from TAPE, D50 on SCALE, PF.

- Inner side of the SCALE, PF’s shaft hole through which the
PF Roller Shaft is installed.
- Printed face of SCALE, PF
If BRACKET, SCALE is not aligned with the circle printed on
SCALE, PF, it should not be a problem.

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

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EPSON Stylus Photo 890/1280/1290
7.

Revision C

Fit the round cutouts in SCALE, PF to the protrusions on SPUR GEAR (76)
making sure the scale and the gear are parallel. But note you don’t attach the scale
to the gear yet.
Attach SCALE, PF to the gear using “Scale PF unit Assembling tool” (AS tool
code: 1051767).

C H E C K
P O IN T

Check that the protrusions on the gear (76) are sticking out
from the cutouts in the scale.

Protrusion
Cutout

Ensure SCALE, PF is free form any dirt or damage.
SPUR GEAR, 76

Protrusions

Tool (#1051767)

SCALE, PF

Figure 4-63. Loop Scale Installation

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

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Revision C

4.2.14 MOTOR ASSEMBLY, PF Removal

Remove HOUSING. (Refer to Section 4.2.1)

2.
3.
4.
5.

Remove the ASF Unit. (Refer to Section 4.2.10.)
Remove the Carriage Unit. (Refer to Section 4.2.11.)
Remove ROLLER, PF. (Refer to Section 4.2.13.)
Remove 1 plane washer (4.1x0.5x4.5) fixing the combination gear (13.5, 30) to
FRAME, LEFT, and then remove the combination gear.

COMBINATION
GEAR, 13.5, 30

Remove 1 screw (CBS, 3x6), plane washer (3.3x0.5x8), and SCREW,
MOUNTING, PF that are securing MOTOR ASSEMBLY, PF to FRAME, LEFT.
Then remove MOTOR ASSEMBLY, PF.

MOTOR ASSEMBLY, PF
SCREW, MOUNTING, PF

PLANE WASHER
(4.1x0.5x6.5)

CBS (3x6), PLANE WASHER

Figure 4-65. PF Motor Removal
Figure 4-64. Removing COMBINATION GEAR and PLANE WASHER

C A U T IO N

A D J U S T M E N T
R E Q U IR E D

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

Be careful not to damage the teeth of COMBINATION GEAR,
13.5, 30.

If you replace MOTOR ASSEMBLY, PF, adjust backlash for the
PF pinion and SPUR GEAR, 76. (See Chapter 5.)

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Revision C

4.2.15 PE Sensor Unit Removal
1.

Remove HOUSING. (Refer to Section 4.2.1)

2.
3.
4.
5.
6.

Remove the ASF Unit. (Refer to Section 4.2.10.)
Remove the DE Unit. (Refer to Section 4.2.9.)
Remove PAPER GUIDE, RIGHT Unit. (Refer to Section 4.2.13.)
Remove the timing belt. (Refer to Section 4.2.11.)
Release 2 hooks securing the PE sensor unit to FRAME, TOP, lift up the PE
sensor unit, and then remove it to the rear.

Hooks

PE Sensor Unit

Figure 4-66. PE Sensor Unit Removal

C H E C K
P O IN T

When installing the PE Sensor Unit, ensure that the sensor lever
is set in the square hole in PAPER GUIDE, RIGHT Unit. (See
Figure 4-59.)

DISASSEMBLY AND ASSEMBLY

Disassembly Procedures

117

CHAPTER

ADJUSTMENT

EPSON Stylus Photo 890/1280/1290

Revision C

5.1 Overview

The table below lists the type of repair and required adjustments in the order to be
made.

This chapter describes adjustments required if the printer is disassembled and
assembled for repair or service.

Table 5-2. Type of Repair and Required Adjustment
No.

5.1.1 Adjustment Items
Table 5-1 lists the required adjustments for this printer. If any of the services listed in
the table below is carried out, all adjustments corresponding to the service items need
to be performed to ensure proper operations for this printer.

Table 5-1. Adjustment Item
No.

Item
Parallelism Adjustment
(without the adjustment
program)

• When you replace or remove the carriage
guide shaft.
• When you replace or remove the parallelism
adjustment bushing.

Backlash Adjsutment
(without the adjustment
program)

• When you replace the PF motor.
• When you remove the Gear 76.

Ink Charge

• When you replace or remove the printhead.

Head ID Input

Bi-Directional Adjustment

• When you replace the printhead.
• When you replace the main board.
NOTE: New head ID is not written until
EEPROM is reset.
•
•
•
•

When you replace the printhead.
When you replace the main board.
When you replace the CR motor assembly.
When you remove the carriage unit.

Input USB ID

• When you replace the main board.

Protection Counter Clear

• When you replace the waste ink pad.

ADJUSTMENT

Overview

Required adjustment

Printhead removal

1. Head Cleaning
2. Bi-Directional Adjustment

Printhead replacement

1.
2.
3.
4.

Head ID Input
Ink Charge
Nozzle Check
Bi-Directional Adjustment

Main board replacement

1.
2.
3.
4.

Head ID Input
Bi-Directional Adjustment.
Input USB ID
Protection Counter Clear

Carriage unit replacement or removal

1. Parallelism Adjustment
2. Bi-Directional Adjustment

CR Motor replacement

1. Bi-Directional Adjustment

Printer mechanism replacement

1. Head ID Input
2. Ink Charge
3. Bi-Directional Adjustment

Waste Ink Pad replacement

1. Protection Counter Clear
1. Backlash Adjsutment

Replacement or removal of the
following parts.
1) PF motor
2) Gear 76
3) PF roller assembly

When to perform

Type of repair

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Revision C

5.1.2 Adjustment Tools
The table below shows adjustment tools you need for servicing the Stylus PHOTO
1280.

Table 5-3. Adjustment Tools
Tool

Type of adjustment

Specifications

Thickness Gauge

Parallelism Adjustment

Thickness: 1.14 mm

Microscope

Backlash Adjsutment

Magnified ratio: x 15
Minimum scale: 0.1mm

Service Program

•
•
•
•
•
•
•
•

A 3.5- inch HD floppy disk
(Choose either Win.95 or 98)

C A U T IO N

Ink Charge
Head ID Input/Check
Head Cleaning
Refurbishment for DOA
USB ID Input/Check
Bi-Directional Adjustment
Protection Counter Clear
Nozzle Check

Never use a deformed (twisted or warped) or rusty thickness
gauge.

Wipe off any dirt, grease, or foreign matter on the thickness
gauge before you use it.

ADJUSTMENT

Overview

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EPSON Stylus Photo 890/1280/1290

Revision C

5.2 Adjustment

5.2.1.1 Using PG Adjustment Tool
1.

This section explains the procedure for each adjustment.

Install the right and left Parallel Adjustment Bushings to the printer mechanism by
aligning their marks with the notches on the frames.

5.2.1 Parallelism Adjustment

Mark

When you remove/replace the carriage unit, make a parallelism adjustment because
you need to remove the parallelism adjustment bushings. This adjustment enables you
to provide an appropriate distance between the printhead and platen as well as to set the
CR guide shaft in parallel with the paper.

To the front
(= gap is widen)

Notch on the frame
(+)

Using the PG adjustment tool is the best way to adjust the PG (Platen Gap) as accurate
as possible. You may substitute a thickness gauge (1.14mm) for the PG adjustment
tool, however, the accuracy of PG may decline comparing to using the PG adjustment
tool.
C A U T IO N

To the rear
(= gap is narrowed)

Frame
(0)
Right Parallelism
Adjustment Bushing

Do not scratch the special coated surface of the PF roller
assembly and rib surface of the front paper guide; B.

Before starting the adjustment, wipe the PG adjustment tool
and thickness gauge with a clean cloth moistened with alcohol.
Be careful not to damage the printhead surface or leave any dirt
on it. (Make sure the PG adjustment tool and thickness gauge is
free from any stain, and also do not touch the head surface with
the thickness gauge.
Be sure to perform the Printhead Rmoval with the ink
cartridges installed.

ADJUSTMENT

PG Lever

Figure 5-1. Initial Position of the Parallelism Adjustment Bushing
2.

Set the PG Lever to the front side (the “0” position).

If the Carriage Unit is locked, unlock it by pushing down the lock lever using
tweezers.

Adjustment

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EPSON Stylus Photo 890/1280/1290
4.

Revision C

Move the Carriage to the center of the printer mechanism. Put the PG adjustment
tool right on the rightmost rib of Paper Guide Front.
C H E C K
P O IN T

C A U T IO N

To move the Carriage Unit, pull the timing belt with your hand.
Be careful not to damage the CR scale (linear encoder).

Make sure to align the edge of the PG adjustment tool on the
rightmost part of Front Paper Guide with the jut out portion of the
tool Part) placed on the rear ditch of Front Paper Guide.
5.

Set the PG Lever to the rear side (the “+” position).

Move the Carriage to right until it covers the right C part of the PG adjustment
tool. Make sure the right edge of the printhead frame is placed right above the C
part of the PG adjustment tool.
Set the PG Lever to the front side (the “0” position).

Set PG Adjustment tool right on
the rightmost rib of Paper Guide Front.

C Part
B Part
(narrow side)

A Part

B Part
(wide side)

Table 5-4. Carriage on PG Adjustment Tool
7.

Front Paper Guide

Set the Right Parallel Adjustment Bushing forward. By moving the bushing to the
back one notch at a time, find the position where the printhead touches the PG
adjustment tool. From the touching point, move the bushing forward (Wider PG
direction) by one notch.
C H E C K
P O IN T

Figure 5-2. Setting PG Adjustment Tool

ADJUSTMENT

Adjustment

Platen Gap becomes wider when moving the Parallel Adjustment
Bushing forward and becomes narrower when moving
backward.
Make a PG adjustment at least 3 times, both sides and repeat one
side.
Make sure a peak portion of the frame engages with a valley
portion of Parallel Adjustment Busing.

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EPSON Stylus Photo 890/1280/1290
8.

Perform the PG adjustment to the left side.
Move the Carriage to the center of the printer mechanism. Put the PG adjustment
tool right on the leftmost rib of Paper Guide Front.
C H E C K
P O IN T

Revision C

Make sure to align the edge of the PG adjustment tool on the
leftmost part of Front Paper Guide with the jut out portion of the
tool (bottom part) placed on the rear ditch of Front Paper Guide.

Set the Left Parallel Adjustment Bushing forward. By moving the bushing to the
back one notch at a time, find the position where the printhead touches the PG
adjustment tool. From the touching point, move the bushing forward (Wider PG
direction) by one notch

10. Move the PG lever to the rear (+).
11. Move the Carriage Unit over the PG adjustment tool on the left.
12. Bring the PG lever to the front (0).
13. Make the adjustment as in the same manner as in step 6 and 7.
14. Bring the PG lever to the rear (+).
15. Move the carriage back over the PG adjustment tool on the right.
16. Move the PG lever back to the front (0).
17. Make the adjustment again on the Right Parallel Adjustment Bushing. If the result
is good, the adjustment is completed.
18. Fasten the bushing screws on both sides.

ADJUSTMENT

Adjustment

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Revision C

5.2.1.2 Using Thickness Gauge
Using the PG adjustment tool is the best way to adjust the PG (Platen Gap) as accurate
as possible. You may substitute a thickness gauge (1.14mm) for the PG adjustment
tool, however, the accuracy of PG may decline comparing to using the PG adjustment
tool.
1.

Follow Step 1 to 3 in 5.2.1.1“Using PG Adjustment Tool” on page -121.

Bring the Carriage to the center of the printer mechanism. Then place the thickness
gauges (1.14 mm) on the front paper guide aligning them with the right and left
square cutouts in the front paper guide. (See Figure 5-3.)

Front Paper Guide

Cutout

Thickness
Gauge
Gauge Aligning Position

To move the carriage unit, pull the timing belt with your hand.
Be careful not to damage the CR scale (linear encoder).

Move the Carriage Unit over the gauge on the right.

If the printhead does not touch the gauge, turn the bushing to the rear to make the
printhead touch the gauge and then, from the touching position, bring the bushing
back by one notch. On the other hand, if the printhead already touches the gauge,
turn the bushing to the front to make the printhead touch the gauge, and then push
the bushing back by one notch.

Move the PG lever to the rear (+).

Move the carriage unit over the thickness gauge on the left.

Bring the PG lever to the font (0).

Make the adjustment as in the same manner as in step 4.

Bring the PG lever to the rear (+).

Right Edge
(Home Position Side)

Left Edge
Carriage Unit

C H E C K
P O IN T

10. Move the carriage back over the thickness gauge on the right.
11. Move the PG lever back to the front (0).
12. Make the adjustment again on the right parallelism adjustment bushing. If the
result is good, the adjustment is completed.
13. Fasten the bushing screws on both sides.

• Set the gauge on the horizontal top of
the ribs.
• Bring the rib tops to the middle of
the gauge.
PF Roller

C H E C K
P O IN T

Front Paper Guide

Figure 5-3. Placing the Thickness Gauge

ADJUSTMENT

Adjustment

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EPSON Stylus Photo 890/1280/1290

Revision C

5.2.2 Backlash Adjsutment

Before you begin, make sure the following parts are removed:

COMBINATION GEAR, 13.5, 30

This section describes Backlash Adjsutment that is to be made after removing the PF
motor. This adjustment provides an appropriate backlash (= 0.1 mm or less) for PF
motor pinion gear and the gear (76). You need to make this adjustment when you
replace any of the following parts:

TRAY, ABSORBER ASSEMBLY
HOUSING, PANEL, LEFT
HOUSING, REINFORCING, LEFT

PF motor assembly
Gear 76

See the following figure for locations.

PF roller unit

C A U T IO N

Failure in making this adjustment causes the printer to operate
abnormally as described below:
If backlash is too little:
1. The PF motor dose not rotate correctly and paper feeding
accuracy declines.
2. Gear 76 and the PF pinion gear make abnormal noises
during printing.
If backlash is too large, the PF motor dose not rotate correctly
and paper feeding accuracy declines.

COMBINATIO
N GEAR, 13.5,30

HOUSING,
REINFORCING,

HOUSING, PANEL,
LEFT

Figure 5-4. Parts to Remove
C A U T IO N

ADJUSTMENT

Adjustment

Be careful not to damage the PF Loop scale when removing
COMBINATION GEAR, 13.5, 30.

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EPSON Stylus Photo 890/1280/1290

Revision C

Loosen the screw (CBS, 3x6) securing the PF motor assembly to the left frame by
rotating it half.

Press the gear 76 by the point 2 and release it again to ensure it returns to its
original position.

Holding the PF motor assembly, get the pinion mesh the gear 76.

Press the gear 76 by the point 2 in the figure below lightly and release it to ensure
the gear comes back to its original position.

Using a microscope, check for a correct backlash. Backlash at its minimum point
should be 0 - 0.1 mm. If larger, repeat the adjustment.

GEAR, 76

1
2

0 - 0.1 mm

3
3
GEAR, 76

PINION
PINION

Figure 5-5. Checking for Gear Engagement
C A U T IO N

Figure 5-6. Checking for the Backlash

When pressing the gear 76 together with the PF scale, be careful
not to damage or stain the scale.

4) Press the gear by the indicated positions 1 and 3 (each point is 2.5 cm apart from
the point 2) and check that the gear squeaks at each point. If not, start over from
the step 2.
5.

Fasten the screw (CBS, 3x6) to secure the PF motor assembly to the left frame.

ADJUSTMENT

Adjustment

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Revision C

5.2.3 Adjustment Program Feature
This adjustment program, which is available for both Stylus Photo 890 and Stylus
Photo 1290, consists of two independent main programs; Individual Adjustment
Program and Sequential Repair Program. The basic adjustment items you can perform
using this program are as shown in the following tables:

Individual Adjustment Service Program
This program can independently adjust the service items. The adjustment/
maintenance items are shown below.

Table 5-5. Individual Adjustment Program
No.
1

Service Items
Adjustment

Adjustment Items
Head ID Input

Figure 5-7. Independent Adjustment Program Main Menu

Bi-Directional Adjustment
Input USB ID
2

Maintenance

Head Cleaning

Sequential Repair Service Program
Table 5-6. Sequential Repair Service Program
No.

Ink Charge
Refurbishment for DOA
Protection Counter

Repair Items

Printhead Removal

1. Head Cleaning
2. Bi-Directional Adjustment

Printhead Replacement

1.
2.
3.
4.

Head ID Input
Ink Charge
Nozzle Check
Bi-Directional Adjustment

Main Board Replacement

1.
2.
3.
4.

Head ID Input
Bi-Directional Adjustment
Input USB ID
Protection Counter Clear

Carriage Unit Removal/Replacement

1. Bi-Directional Adjustment

CR Motor Replacement

1. Bi-Directional Adjustment

CSIC Information

3
Appendix

EEPROM Date
4

Check Pattern Printing

ADJUSTMENT

A4 Normal Paper Printing

Adjustment

Adjustment Items

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EPSON Stylus Photo 890/1280/1290

Revision C

Table 5-6. Sequential Repair Service Program
No.
6

Repair Items
Printer Mechanism Replacement

Adjustment Items
1.
2.
3.
4.

Head ID Input
Ink Charge
Nozzle Check
Bi-Directional Adjustment

Waste Ink Pads Replacement

1. Protection Counter

Clogged Nozzle Recovery

1. Nozzle Check

Install the program in the order listed below:
1.

According to the version of your computer, insert either “Windows 95” or
“Windows 98” floppy disk to your computer or select Service Program in the
CD-ROM.

Click Stylus Photo 890/1290 95 or 98.exe. The program automatically start and
the initial window appears on the screen.

C A U T IO N

While you are running the service program on Windows 95, you

Figure 5-8. Sequential Repair Service Program Main Menu

5.2.3.1 How to Install the Program
Before installing the program, note the points below:

can not use EPSON Status Monitor. Therefore, close the printer
window on the task bar before you start the program.
If you can not start the program because LPT1 is set to ECP
Printer Port, turn it off in the order below:
1. Delete all printer drivers.
2. Access Control Panel>System>Device Manager>Ports and
delete ECP Printer Port.)
3. Reboot the computer.
If you leave the printer in a non-printing status for 5 minutes or
more, the carriage automatically returns to home position. In this
case, you need to reboot the computer to run the program.
Do not change the setting for Font size in Display settings.
Be sure to connect a parallel interface cable to the printer before
you start the program. Otherwise, the program freezes.
Do not send any command to the printer during a check pattern
print.
While the service program is running, if the printer is turned off
or the interface cable is disconnected, you need to launch the
program again.

Use Windows 95 or higher.

5.2.3.2 How to Uninstall the Program

Use LPT 1 only as the printer port. (Use a USB interface cable only when

Access Control Panel> Add/Remove Programs and uninstall the program.

performing Input USB ID .)

5.2.4 Starting the Service Program
5.2.4.1 Adjusting Program Initial Setting
In order to start the program, you have to input the following information below:

ADJUSTMENT

Adjustment

128

EPSON Stylus Photo 890/1280/1290
Model Name (Stylus PHOTO 890/1280/1290)

Revision C
3.

Select Port.

Stylus PHOTO 1280 is for EAI only.

Port Selection (LPT1/2/3)
Destination (Standard)
Program Type (Individual Adjustment Program/ Sequential Repair Service
Program)
1.

When you start the service program, the initial window appears:

Figure 5-11. Port Selection
4.

Select Destination.

Figure 5-9. Initial Window
2.

Select Model Name:

Figure 5-12. Destination Selection

Figure 5-10. Model Selection

ADJUSTMENT

Adjustment

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EPSON Stylus Photo 890/1280/1290
5.

Revision C

5.3 Individual Adjustment Program

Select Program Type.

5.3.1 Head ID
This adjustment needs to be executed when you replace any of the following parts:

Printhead
Standard

Main Board
Printer mechanism
C A U T IO N

make this adjustment prior to any other adjustment items.

This adjustment is very important to keep good printer

Figure 5-13. Program Type Selection
6.

If you replace the printhead, Main Board, or printer mechanism,

performance. If an wrong ID is input, the printer will exhibit a
dot missing problem or does not print at all.
After making this adjustment, perform all other necessary
adjustments listed in Table 5-2.

After choosing four items on the window, click OK. If you want to exit the
program, click Quit.

NOTE: In this section, Stylus Photo 890 program windows are used as examples.

5.3.1.1 Head ID Input
The Head ID is written to the EEPROM on the Main Board with this function.

ADJUSTMENT

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Head ID from the main menu.

Individual Adjustment Program

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EPSON Stylus Photo 890/1280/1290
3.

Revision C

The Head ID Adjustment window appears. Select Input Head ID and click OK.

The following message appears on the window and the Head ID Input is
completed.

Figure 5-14. Head ID Adjustment Window
Figure 5-16. Head ID Input Completed
4.

The Input Head ID window appears. Enter 13 digit Head ID and click OK.
6.

When you exit this window, click Quit. The exit window appears. Click Quit and
the program is closed. If you want to continue, click Next.

Figure 5-17. Exit Window
Figure 5-15. Head ID Input

ADJUSTMENT

Individual Adjustment Program

131

EPSON Stylus Photo 890/1280/1290

Revision C

5.3.1.2 Head ID Check

The Head ID Adjustment window appears. Select Check Head ID and click
OK.

You can find the Head ID on the following units.

Where to Find the Head ID
The 13 digit Head ID is written on the label inside the printhead.
The Head ID begins from the upper left to the right. Therefore the Head ID is
“W23U3WYXYXOKA” in this case.

W23U3
WYXYX
OKA

Figure 5-19. Head ID Adjustment Window
4.

The current Head ID is displayed.

Figure 5-18. Head ID Sample
Check Current Head ID
You can confirm the present Head ID written in the EEPROM by following the
procedures below.
1.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Head ID from the main menu.

Figure 5-20. Current Head ID Check

ADJUSTMENT

Individual Adjustment Program

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Revision C

To exit or continue the program, refer to Figure 5-17.“Exit Window” on
page -131.
C A U T IO N

The Bi-Directional Adjustment window appears. Select Print Bi-D Adjustment
Pattern and click OK.

The Head ID Input to EEPROM is not effective until the printer is
next turned on.

5.3.2 Bi-Directional Adjustment
This adjustment is required when line misalignment (incorrect print timing) between
the two directions (from left to right and vice versa) is noticed. The adjustment value is
memorized in EEPROM on the main board. You need to make this adjustment under
any of the following conditions.

Figure 5-21. Bi-Directional Adjustment Window

When you:

Replace the printer mechanism.

Replace the main board.

Click OK, and then the Bi-D Adjustment Patterns will automatically be printed.

Remove the CR motor.
Remove the CR unit.

NOTE: You are recommended you should make this adjustment if you disassemble the
carriage mechanism.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Bi-D from the main menu.

Figure 5-22. Bi-Directional Adjustment Pattern Printing

ADJUSTMENT

Individual Adjustment Program

133

EPSON Stylus Photo 890/1280/1290
5.

Revision C

The Bi-Directional Adjustment patterns are printed as follows.

During the adjustment printing, using the track bar is recommended for the second
or later test printing to save paper. The track bar can be set to 8 levels. For the
second printing, however, setting the bar to the right end is recommended. After
setting the bar, click OK.

Set the track bar to
the right end.

Figure 5-23. First Bi-Directional Adjustment Pattern Sample
NOTE: To save sheets of paper during Bi-D Pattern Printing, you can set an initial
printing start position by using the track bar on the window. The printing start
position can be determined according to the track bar you set. With this function,
you can print out the Bi-D Adjustment Patterns twice on an A4 size sheet. (Refer
to Figure 5-25)

Figure 5-24. Second Bi-Directional Adjustment Pattern Printing
7.

The second Bi-D Adjustment Patterns are printed as follows.

The second print
start position

After First Pattern Printing

After Second Pattern Printing

Figure 5-25. Second Bi-Directional Adjustment Pattern Sample

ADJUSTMENT

Individual Adjustment Program

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EPSON Stylus Photo 890/1280/1290
8.

Revision C

The following message appears on the window and the Bi-Directional
Adjustment Pattern Printing is completed.

Figure 5-27. Bi-Directional Adjustment Window

Figure 5-26. Bi-Directional Adjustment Pattern Printing Completed
9.

To exit or continue the program, click Quit on the lower left. Refer to Figure
5-17.“Exit Window” on page -131.

The Bi-Directional Adjustment window appears. Select Input Bi-D Adjustment
Value and click OK.

The Input Bi-D Adjustment Value window appears and the current Bi-D
Adjustment values are displayed. Referring to the printout, input the setting values
using the ↑ or ↓ key or directly type it in.

5.3.2.1 Input Bi-D Adjustment Value
1.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Bi-D from the main menu.

Figure 5-28. Input Bi-D Adjustment Value Window

ADJUSTMENT

Individual Adjustment Program

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EPSON Stylus Photo 890/1280/1290
5.

Revision C

When you adjust the setting values, make sure that the Bi-D gap becomes less than
60 µ m.

Bi-d
MS Color
data = -14

To exit or continue the program, click Quit on the lower left. Refer to Figure
5-17.“Exit Window” on page -131.

5.3.2.2 Check Present Adjustment Data
1.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Bi-D from the main menu.

The Bi-Directional Adjustment window appears. Select Check Present
Adjustment Data and click OK.

Bi-D Gap
Less than 60 µm

Figure 5-29. Bi-D Adjustment Printing Example
6.

After changing the values, click OK. The following message appears on the
window and the Input Bi-D Adjustment Value is completed.

Figure 5-31. Bi-Directional Adjustment Window

Figure 5-30. Input Bi-D Adjustment Value Completed
7.

To continue with other mode, click Previous and select a different item. Print the
Bi-D Adjustment Patterns if necessary.

Repeat the steps from 1 to 7 until you get the best result.

ADJUSTMENT

Individual Adjustment Program

136

EPSON Stylus Photo 890/1280/1290
4.

Revision C

5.3.3 Input/Check USB ID

Click OK and the present adjustment values are displayed.

You are required to perform Input USB ID whenever you replace the main board.
The Stylus PHOTO 1280 is equipped with the USB interface as standard. In the
Windows 98 or iMAC environment, the USB port driver controls its device using the
USB ID stored in EEPROM. Therefore, you need to input a unique USB ID for a new
main board.
During a repair service, a new USB ID is formed with a 10-digit product serial number
and the rest (8-digit) produced by the service program. You need to input the new USB
ID in EEPROM.

C A U T IO N

Figure 5-32. Present Adjustment Data Display
5.

To exit or continue the program, click Quit on the lower left. Refer to Figure
5-17.“Exit Window” on page -131.

C A U T IO N

You need to input a new USB ID for the following reasons:
1. If the main board is replaced, the ID for the board is no longer
used.
2. If the ID is in conflict with an ID used for any other peripheral
devices, the printer can not be connected with a USB interface.

The setting value is not effective until the printer is turned off and
back on. It is because the setting value is stored in EEPROM when
the printer is turned off.

ADJUSTMENT

Individual Adjustment Program

137

EPSON Stylus Photo 890/1280/1290

Revision C

5.3.3.1 Input USB ID
1.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select USB ID from the main menu.

The USB ID Adjustment items window appears. Select Input USB ID .

To exit or continue the program, click Quit on the lower left. Refer to Figure
5-17.“Exit Window” on page -131.

5.3.3.2 Check USB ID
1.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select USB ID from the main menu.

The USB ID Adjustment items window appears. Select Check USB ID and click
OK.

Figure 5-33. Input USB ID Selection
4.

Input a10-digit serial number and click OK. The new USB ID number is displayed.

Figure 5-35. Check USB ID Selection

Figure 5-34. USB ID Input Window

ADJUSTMENT

Individual Adjustment Program

138

EPSON Stylus Photo 890/1280/1290
4.

Revision C

5.3.4 Maintenance

A present USB ID is displayed.

5.3.4.1 Head Cleaning Operation
Head Cleaning is more powerful than the head cleaning performed by pressing the
cleaning button. It is effective when a dot missing problem occurs.
C A U T IO N

[Stylus Photo 890]
Black ink cartridge: Approximately 1/24
Color ink cartridge: Approximately 1/13
[Stylus Photo 1290]
Black ink cartridge: Approximately 1/24
Color ink cartridge: Approximately 1/20

Figure 5-36. Present USB ID Displayed
5.

To exit or continue the program, click Quit on the lower left. Refer to Figure
5-17.“Exit Window” on page -131.
C A U T IO N

Head Cleaning function uses the following amount of ink at a time:

Set A4 Normal Paper on the ASF.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Maintenance Items.

Select Head Cleaning from the main menu.

The Head Cleaning window appears. Click OK and then, the printer will start the
Head Cleaning operations.

Be sure to input the correct printer serial number. If you input a
wrong number, it is still accepted.
Confirmation of USB port function is effective only under the
Windows 98 environment.
The new ID is not effective until the printer is turned on since the
new ID is stored in EEPROM when the printer is turned off.

Figure 5-37. Head Cleaning Window

ADJUSTMENT

Individual Adjustment Program

139

EPSON Stylus Photo 890/1280/1290
6.

Revision C

When the cleaning is completed, the following message appears on the window.

5.3.5 Ink Charge Operation
If the Head Cleaning is not powerful enough to solve the dot missing problem,
perform Ink Charge that consumes more ink.
C A U T IO N

The initial ink charge operation consumes the following amount
of ink at a time:
[Stylus Photo 890]
Black ink cartridge: Approximately 1/8
Color ink cartridge: Approximately 1/4
[Stylus Photo 1290]
Black ink cartridge: Approximately 1/8
Color ink cartridge: Approximately 1/7

Figure 5-38. Head Cleaning Completed

To exit or continue the program, click Quit on the lower left. Refer to Figure
5-17.“Exit Window” on page -131.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Maintenance Items.

Select Ink Charge from the main menu.

The Ink Charge window appears. Click OK and then, the printer begins the ink
charge operation.

Figure 5-39. Initial Ink Charge Window

ADJUSTMENT

Individual Adjustment Program

140

EPSON Stylus Photo 890/1280/1290
5.

Revision C

The following message appears. After replacing both black and color I/Cs with
new ones, click Yes. The printer begins the ink charge operation.

5.3.6 Refurbishment for DOA
This function is used when the cavity of the printhead and cap assembly needs to be
cleaned.
C A U T IO N

Yes

After carrying out this function, replace the Waste Drain Ink

Figure 5-40. I/C Replacement Message
6.

When the ink charge is completed, the following message appears on the window.

Figure 5-41. Ink Charge Replacement Completed
7.

To exit or continue the program, click Quit on the lower left. Refer to Figure
5-17.“Exit Window” on page -131.

ADJUSTMENT

Pad with a new one and reset the Waste Drain Ink Pad Counter
(Protection Counter). If not, ink or S46 liquid may leak from the
ink pad during the transportation.
Prepare the following tools:
1. Dummy Ink Cartridges
2. Injector
3. S46 Liquid
This operation is available only once. Do not use this function
repeatedly. Repetition of this function may cause overflow of the
ink and S46 liquid.
When you refurbish a repairing product using the program, do it
on your responsibility.
When you charge S46 liquid into dummy ink cartridges with the
injector, make sure to full the cartridges up with the S46 liquid.
If not, the printhead may not be completely cleaned in this
operation.
Keep the S46 liquid and dummy ink cartridges clean even not in
use.

Set the dummy cartridges I/Cs filled with S46 to the CR unit.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Maintenance Items.

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EPSON Stylus Photo 890/1280/1290
4.

Revision C

Select Refurbishment for DOA from the main menu and click OK.

Figure 5-42. Transportation Liquid Exchange Window
5.

Click OK and the Transportation Liquid Exchange Operation will start.

Figure 5-43. Transportation Liquid Exchange Operation
6.

To exit or continue the program, click Quit on the lower left. Refer to Figure
5-17.“Exit Window” on page -131.

Remove the dummy I/Cs from the CR unit.

ADJUSTMENT

Individual Adjustment Program

142

EPSON Stylus Photo 890/1280/1290

Revision C

5.3.7 Protection Counter

The Check the Protection Counter window appears. Click OK, and the current
protection counter value will be displayed.

This function enables you to check the current value for the protect counter A. The
protect counter A monitors the level of waste ink flown into the waste ink absorber. If
the wasted ink level excesses the limit, it will overflow into the printer. To avoid this,
the printer indicates “Maintenance Request” when the counter reaches to the limit and
stops accepting any data except for the power signal from the control panel. During the
repair service, you are required to replace the waste ink absorbers and reset the
protection counter. For the waste ink absorber replacement procedure, see
4.2.5“TRAY, ABSORBER ASSEMBLY Removal” on page -89. Note you can also
reset the protection counter by the panel operation.
C A U T IO N

Protection Counter does not clear “Maintenance Request” but
resets the protection counter only.

To clear “Maintenance Request”, refer to Chapter 1/Section
1.4.4 or Chapter 3/Section 3.1.1.6.

Figure 5-45. Protection Counter Value Displayed

5.3.7.1 Check the Present Counter Value
1.

To return to the Check the Protection Counter window, click Previous.

To exit or continue the program, click Quit on the lower left on the window.
(Refer to Figure 5-17.“Exit Window” on page -131.)

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

5.3.7.2 Clear the Protection Counter Value

Select Maintenance Items.

The Protection Counter Maintenance window appears. Select Check the
Present Counter Value and click OK.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Maintenance Items.

Figure 5-44. Protection Counter Maintenance Window

ADJUSTMENT

Individual Adjustment Program

143

EPSON Stylus Photo 890/1280/1290
3.

Revision C

The Protection Counter Maintenance window appears. Select Clear the
Protection Counter Value and click OK.

The following message is displayed. After replacing the Waste Ink Pad with a new
one, click (Y).

Yes

Figure 5-48. Waste Ink Pad Replacement Massage
6.

The protection counter is cleared and the following message is displayed.

Figure 5-46. Protection Counter Maintenance Window
4.

The Clear the Protection Counter window appears and click OK,.

Figure 5-49. Counter Value Display Window

Figure 5-47. Clear the Protection Counter Window

To return to the Check the Protection Counter window, click Previous.

To exit or continue the program, click Quit on the lower left on the window.
(Refer to Figure 5-17.“Exit Window” on page -131.)
C A U T IO N

ADJUSTMENT

Whenever you reset the protection counter, make sure to replace

Individual Adjustment Program

the Waste Ink Pad with a new one. (Refer to TRAY, ABSORBER
ASSEMBLY Removal).

144

EPSON Stylus Photo 890/1280/1290

Revision C

5.3.8 Appendix Items

5.3.8.1 CSIC Information

Select the necessary item and click OK. (e.g. Black Ink Cartridge Unique
Information is selected here).
If you need all of the information listed on the window, select Print Out All
Information.

CSIC is installed with the data for black and color cartridges in the EEPROM. The
EEPROM records the information of black/color ink cartridge life and so on.
According to the data in the EEPROM, the information of ink cartridge life and others
is displayed on the status windows.
1.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Appendix Items.

The Appendix Items window appears. Select CSIC Information.

Figure 5-51. CSIC Information
5.

The selected information is displayed.

Figure 5-50. CSIC Information Selection

Figure 5-52. Black I/C Unique Information

ADJUSTMENT

To select other items, click Previous to return to the CSIS Information window.

To exit or continue the program, click Quit on the lower left on the window.
(Refer to Figure 5-17.“Exit Window” on page -131.)

Individual Adjustment Program

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EPSON Stylus Photo 890/1280/1290

Revision C

5.3.8.2 EEPROM Data Check

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Appendix Items.

The Appendix Items window appears. Select EEPROM Data.

The information of the designated address is displayed as follows.

Figure 5-55. EEPROM Data Displayed

Figure 5-53. EEPROM Data Selection
4.

Input the reading start address and end address. Click OK.

Click Previous twice to return to the EEPROM Data window.

To exit or continue the program, click Quit on the lower left on the window.
(Refer to Figure 5-17.“Exit Window” on page -131.)

5.3.8.3 Changing EEPROM Data
1.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Appendix Items.

The Appendix Items window appears. Select EEPROM Data.

Figure 5-54. Reading Start/End Address Input

ADJUSTMENT

Individual Adjustment Program

146

EPSON Stylus Photo 890/1280/1290
4.

Revision C

The the EEPROM Data window appears. Select Change the EEPROM Data.

When the EEPROM data is changed, a new address and data is displayed at the
lower left.

Figure 5-56. EEPROM Data Selection
Figure 5-58. EEPROM Data Change Completed
5.

Input the EEPROM address and data needs to be changed and click OK.
7.

Click Previous twice to return to the EEPROM Data window.

To exit or continue the program, click Quit on the lower left on the window.
(Refer to Figure 5-17.“Exit Window” on page -131.)

5.3.9 A4 Check Pattern Printing
This function lets the printer to print several test patterns on a A4 paper to allow you to
check the adjustment results.
1.

Set A4 Normal Paper on the ASF.

Start the program and input all the required information on the initial window.
Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial
Setting” on page -128)

Select Check Pattern Printing Items.

Figure 5-57. EEPROM Data Change Window

ADJUSTMENT

Individual Adjustment Program

147

EPSON Stylus Photo 890/1280/1290
4.

Revision C

The Check Pattern Printing window appears. Select A4 Normal Paper
Printing.

Figure 5-61. A4 Normal Paper Printing Completed

Figure 5-59. A4 Normal Printing Selection
5.

When the printing is completed, the following message is displayed on the
window.

Click OK. All of the 8 items on the window are printed on A4 Normal sheets.

To exit or continue the program, click Quit on the lower left on the window.
(Refer to Figure 5-17.“Exit Window” on page -131.)

Figure 5-60. A4 Normal Paper Printing

ADJUSTMENT

Individual Adjustment Program

148

EPSON Stylus Photo 890/1280/1290

Revision C

5.4 Sequential Repair Adjustment Program

5.4.1.1 How to start the program
1.

This program is common for both Stylus Photo 890 and Stylus Photo 1290.
NOTE: In this section, Stylus Photo 890 program windows are used as examples.

Start the program and input all the required information on the initial window.
Make sure to chose Sequential Repair Adjustment Program for Program Type.
(See 5.2.4.1“Adjusting Program Initial Setting” on page -128)

5.4.1 Function
In this section, the sequential operations needs to be done are explained. This service
program provides appropriate adjustment orders for repair, and the following
adjustment items are included:

Printhead Removal
Printhead Replacement
Main Board Replacement
Carriage Unit Replacement/Removal
CR Motor Replacement
Printer Mechanism Replacement
Waste Ink Pad Replacement
Clogged Nozzle Recovery

Figure 5-62. Program Type Selection
2.

Select a repair item and click OK. The main menu appears.

Figure 5-63. sequential Repair Adjustment Program Main Menu

ADJUSTMENT

Sequential Repair Adjustment Program

149

EPSON Stylus Photo 890/1280/1290

Revision C

5.4.1.2 Printhead Removal

When the Head Cleaning is completed, the following message is displayed on the
window.

When you remove the printhead and reinstall it, select this function and execute the
operations following the procedures below.
1.

Reinstall the printhead to the carriage unit of the under-repair printer mechanism.

Select Printhead Rmoval from the main menu.

Select Head Cleaning and click OK. For detailed information on the ink
consumption amount during the Head Cleaning operation, refer to 5.3.4.1“Head
Cleaning Operation” on page -139.

Figure 5-65. Head Cleaning Completed
5.

Select Bi-D Adjustment and click Print. According to the printed Bi-D
Adjustment Pattern, continue the adjustment until you get the best result. If you
need to change the Bi-D Adjustment values, click Adjust and change the
adjustment values. Refer to 5.3.2“Bi-Directional Adjustment” on page -133.

Figure 5-64. Head Cleaning Window

Figure 5-66. Bi-D Adjustment Pattern Printing
NOTE: To save sheets of paper during Bi-D Pattern Printing, you can set an initial
printing start position by using the track bar on the window. The printing start
position can be determined according to the track bar you set. Refer to 5.3.2“BiDirectional Adjustment” on page -133.

ADJUSTMENT

Sequential Repair Adjustment Program

150

EPSON Stylus Photo 890/1280/1290
6.

Revision C

When the Bi-D pattern printing is finished, the following message is displayed.
Click Complete.

5.4.1.3 Printhead Replacement
1.

Replace the printhead with a new one. Select Printhead Replacement from the
main menu.

The Head ID window appears. Input a 13-digit Head ID and click OK.

Figure 5-67. Bi-D Pattern Printing Completed
7.

The following message appears. All of the Printhead Removal operations are
completed.

Figure 5-69. Head ID Input Window
3.

The following massage, “As head ID, ’xxxxxxxxxxxxx’ has been written in
EEPROM” is displayed. Click Complete.

Select Ink Charge. For the procedures, refer to 5.3.5“Ink Charge Operation” on
page -140.

Figure 5-68. Printhead Removal Operations Completed
8.

To return to the main menu, click the Menu button at the lower left.

Figure 5-70. Ink Charge Window

ADJUSTMENT

Sequential Repair Adjustment Program

151

EPSON Stylus Photo 890/1280/1290

Revision C

Execute Nozzle Check. Refer to 5.4.1.9“Clogged Nozzle Recovery” on
page -152.

Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on
page -133

5.4.1.4 Main Board Replacement

5.4.1.8 Waste Ink Pad Replacement
When you replace the Waste Ink Pad with a new one, the protector counter needs to be
cleared.
1.

Select Waste Ink Pad Replacement from the main menu.

Execute Protection Counter Clear. Refer to 5.3.7“Protection Counter” on
page -143.

Select Main Board Replacement from the main menu.

Execute Head ID Input. Refer to 5.4.1.3“Printhead Replacement” on page -151.

5.4.1.9 Clogged Nozzle Recovery

Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on
page -133.

Select Clogged Nozzle Recovery from the main menu.

Execute USB ID Input. Refer to 5.3.3“Input/Check USB ID” on page -137.

Execute Protection Counter Clear. Refer to 5.3.7“Protection Counter” on
page -143.

Select Nozzle Check and click Print. If a dot missing problem occurs, click
Cleaning to execute nozzle cleaning. Repeat the procedures, if necessary, until the
nozzle problem is recovered.

The Nozzle Check Patter is printed as follows.

5.4.1.5 Carriage Unit Replacement/ Removal
1.

After removing or replacing the Carriage Unit with a new one, select Carriage
Unit Replacement/Removal from the main menu.

Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on
page -133.

5.4.1.6 CR Motor Replacement
1.

After replacing the CR Motor, select CR Motor Replacement from the main
menu.

Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on
page -133.

5.4.1.7 Printer Mechanism Replacement
Make this adjustment when you replace the printer mechanism with a new one. Since
the Printer Mechanism Replacement Procedures are the same as those of the Printhead
Replacement, refer to 5.4.1.3“Printhead Replacement” on page -151.

ADJUSTMENT

Figure 5-71. Nozzle Check Pattern Sample
NOTE: To save sheets of paper during Nozzle Check Pattern Printing, you can set an
initial printing start position by using the track bar on the window. The printing
start position can be determined according to the track bar you set. With this
function, you can print out Nozzle Check Printing Patterns multiple times on an
A4 size sheet.

For the second or later test printing using, using the track bar is recommended to
save paper. The track bar can be set to 8 levels. For the second printing, setting the
bar to the first is recommended. After setting the bar, click OK.

Sequential Repair Adjustment Program

152

EPSON Stylus Photo 890/1280/1290
5.

Revision C

The second or third test printing patterns are printed as follows.
The Second Nozzle Check Pattern
starts from here.

The Third Nozzle Check Pattern
starts from here.

Figure 5-72. Second/Third Nozzle Check Pattern Printing Sample
6.

When the Nozzle functions properly, click Complete.

To return to the main menu, click the Menu button at the lower left.

ADJUSTMENT

Sequential Repair Adjustment Program

153

CHAPTER

MAINTENANCE

EPSON Stylus Photo 890/1280/1290

Revision D

6.1.2 Service Maintenance

6.1 Overview
This section describes points and procedures for maintaining the printer in its optimum
condition.

6.1.2.1 Head Cleaning

6.1.1 Cleaning
The printer has no mechanical components which require regular cleaning. Therefore,
note that the points suggested below are only to check for dirt, and cleaning should be
performed upon necessity.
C A U T IO N

If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates
“Maintenance Error”, take the following actions to clear the error.

Never use chemical solvents, such as thinner, to clean the printer.

The printer has a built-in head cleaning function, which is activated through the control
panel operation. Run a head cleaning in the following order:
1.

Confirm that the printer is in stand-by state. (The power lamp is not blinking.)

Hold down the cleaning button on the control panel for 3 seconds or longer. (The
power LED blinks during the cleaning.)

These chemicals can damage the printer components.

Be careful not to damage the components in attempt to clean
inside the printer.
Do not scratch the surface of “ROLLER, ASSEMBLY, PF”. (Use
a soft brush to wipe off the dust, or use a soft cloth moistened
with alcohol.)

Housing:
Use a soft clean cloth moistened with water to wipe off any dirt. If the housing is
stained with ink, use a cloth moistened with neutral detergent to wipe it off.

Inside the Printer:
Use a vacuum cleaner to remove any paper dust.

6.1.2.2 Maintenance Request Error Clear
Ink is used for cleaning as well as printing. During cleaning, the printer drains some ink
into the waste ink pads. The protection counter A in EEPROM on the main board keeps
track of the quantity of ink drained into the waste ink pads. When the counter reaches
the predefined service limit, the printer assumes the waste ink pad is full of ink and
requests ink pad replacement by indicating a maintenance request error.

Service limit of the protection counter A:
The service limit of the protection counter A = 35400

Timing for replacing the waste ink pad:
When the total amount of the waste ink reaches the predetermined limit, a
maintenance error occurs. In this condition, the printer does not accept any input
but from the power button.

Current counter value can be found on a status print sheet that also shows the
firmware version, selected code page, and nozzle check pattern. During
servicing, you are required to check the counter value and if the counter is
close to its limit, notify your customer of the situation and recommend that the
waste ink pad be replaced (If the waste ink pad is not replaced at that time,
there is a possibility that a maintenance error will occur soon after the printer
is returned to the customer). Once you have the confirmation of the customer,
replace the waste ink pad and reset the counter.

The counter limit is generally 25000 pages and 10000 pages for black and
color, respectively. In normal use, the counter reaches the limit in 5 years.

MAINTENANCE

Overview

155

EPSON Stylus Photo 890/1280/1290
Replacement procedure:
Refer to Section 4.2.5.

Operation after replacement:
Perform “Waste ink counter reset”. Refer to Chapter 1/Section 1.4.4 for details.

Revision D

6.1.3 Lubrication
The type and amount of oil and grease used to lubricate the printer parts are determined
based on the results of internal evaluations. Therefore, be sure to apply the specified
type and amount of oil and grease to the specified part of the printer mechanism during
servicing.

Never use oil and grease other than those specified in this

C A U T IO N

manual. Use of different types of lubricant can damage the
printer and its components.
Never apply larger amount of lubricant than specified in this
manual.

Table 6-1. Specified Lubricants

MAINTENANCE

Overview

Type

Name

EPSON Code

Supplier

Grease

G-26

1080614

EPSON

Grease

G-56

1059150

EPSON

Oil

O-12

1038991

EPSON

156

EPSON Stylus Photo 890/1280/1290

Revision D
Table 6-2. Lubrication Point (continued)

Table 6-2. Lubrication Point
Lubrication Point

Lubricant Type &
Amount

COMBINATION GEAR, 12, 22.92,
LEVER ASSY
• Using a brush, apply the grease evenly to
the inside surface of the bushing except
for the part in witch E-Ring is installed.

G-26

Page 159

BUSHING, 12, RIGHT
• Using a brush, apply the grease evenly to
the inside surface of the bushing.

G-26
A 3-mm wide bead

Page 159

HOLDER, PULLEY, DRIVEN

G-26
φ 1 x 3mm (for each of
the 4 points)

Page 159

BUSHING, 12, LEFT
• Using a brush, apply the grease to the
inside surface of the bushing.

G-26
A 3-mm wide bead

Page 160

BUSHING, 6
• Using a brush, apply the grease to the
inside surface of the bushing.

G-26
A 1-mm wide bead

Page 160

PULLEY, DRIVEN
• Apply the grease to the flat surface.

G-26
φ 1 x 1mm (2 points)

Page 161

SHAFT, PULLEY, DRIVEN

G-26
φ 1 x 1mm

Page 161

COMBINATION GEAR, 12, 22.4
• Using a dispenser, apply the oil to the
entire inside circumference of the gear.

O-12

Page 161

COMBINATION GEAR, 14, 28
• Using a flux dispenser, apply the oil to the
entire inside circumference of the gear.

O-12

Shaft C
• Using a brush, apply the oil to the whole
surface of Shaft C with G-26.

G-26

MAINTENANCE

Lubrication Point

Refer to:

Lubricant Type &
Amount

Refer to:

FELT, D3.6 for COMBINATION GEAR
O-12
12, 22.4 (set the felt to Shaft B)
Soak in.
• Lubricate the inner all part of the
Combination Gear, 12,22.4 with O-12 by
brush.
• Dip the felt in the oil to soak it
• Insert the Felt, D3.6 with O-12 to Shaft B.
NOTE:1) Do not use Felt with white
core.
2) Do not spill on Lever Planet
Unit during insertion of Felt.
3) Do not hang down oil to any
part except on the shaft.

Page 161

FELT, D3.6 for COMBINATION GEAR
O-12
14, 28 (set the felt to Shaft A)
Soak in.
• Lubricate the inner all part of the
Combination Gear, 14,28 with O-12 by
brush.
• Dip the felt in the oil to soak it
• Insert the Felt, D3.6 with O-12 to Shaft A.
NOTE:1) Do not use Felt with white
core.
2) Do not spill on Lever Planet
Unit during insertion of Felt.
3) Do not hang down oil to any
part except on the shaft.

Page 161

Groove on “ROLLER, PF”
• Apply the grease to the groove on the
Roller PF.

G-26
φ 1 x 5mm

Page 162

Contact area for ROLLER, EJECT and
GROUND SPRING, EJECT
• Apply the grease while rotating the shaft.

G-26

Page 162

Page 161

Overview

φ 1 x 2mm

157

EPSON Stylus Photo 890/1280/1290

Revision D

Table 6-2. Lubrication Point (continued)
Lubrication Point
15

171

Lubricant Type &
Amount

Table 6-2. Lubrication Point (continued)
Refer to:

Contact areas for ROLLER, PF and
PAPER GUIDE, REAR
• Apply the grease to the contact area while
rotating the shaft.
NOTE: Do not get the grease on the
specially coated area of ROLLER,
PF.

G-26
φ 1 x 1/2 of the
circumference

Page 162

PAPER GUIDE, FRONT (6 points)
• Lubricate slots(4) and hooks(2) of Paper
Guide Front with G-26 using syringe.

G-26
• φ 1 x 2mm
(Eject Roller side[2])
• φ 1 x 10mm
(PF Roller side[1])
• φ 1 x 2mm([2] hooks
& [1] slot)

Page 162

SHAFT, CR (EPSON Stylus Photo 890
only)

G-56

Page 163

SHAFT, CR (EPSON Stylus Photo
• Apply O-12 on the Oil Pad (1049380)

O-12
• 0.70-0.74cc or 0.630.67g

COMBINATION GEAR 13.5, 30 shaft in
FRAME, LEFT

G-26
φ 1 x 5mm

1280/1290)

MAINTENANCE

Lubricant Type &
Amount

Refer to:

LD Roller Assy hole in the FRAME, ASF;
B
• Using a brush, apply the grease evenly to
the entire inside surface of the hole.

G-26
φ 1 x 1mm

Page 163

Latches (right & left) in the Hopper Assy
along which the hopper release levers turn
(2 spots).
• Use a brush to apply the grease.

G-26
A 2-mm wide bead for
each one.

Page 164

GUIDE PLATE, CR
• Apply the grease to the Carriage using the
Guide Place CR Lubricating jig.
• Spread the G-26 evenly by moving the
Carriage once.

G-26
φ 1 x 270mm(See the
figure for length.)

Page 164

W A R N IN G

• Apply G-56 on Shaft, CR (2 spots).
• After applying the grease, move the
Carriage to left to right to distribute the
grease evenly on the shaft.
172

Lubrication Point

Never apply oil directly to the CR guide shaft. This may cause a
fatal damage to the main components of the printer. (EPSON
Stylus Photo 1280/1290)
Avoid applying too much oil to the oil pad. Otherwise, you may
critically damage the main components of the printer. (EPSON
Stylus Photo 1280/1290)

Page 163

Overview

158

EPSON Stylus Photo 890/1280/1290

Revision D

HOLDER, PULLEY, DRIVEN

G-26

COMBINATION GEAR, 12,22.9

G-26

Figure 6-3. Holder, Pulley, Driven
Figure 6-1. Lever Assy, Combination Gear, 12,22.92

G-26

Figure 6-2. Bushing, 12, Right

MAINTENANCE

Overview

159

EPSON Stylus Photo 890/1280/1290

Revision D

G-26
LEVER, CR, LOCK

E RING, 4, F/UC
BUSHING, 6

U-TYPE SPRING,
5.2X0.13X10,S/Na

BUSHING, 12, LEFT
ROLLER, ASSY, EJECT

G-26

PLAIN WASHER,
5.1X0.7X11,S/Na

SHAFT, CR, GUIDE

BUSHING, 6

G-26

BUSHING, 12, LEFT

Figure 6-5. Bushing, 6

Figure 6-4. Bushing, 12, Left

MAINTENANCE

G-26

Overview

160

EPSON Stylus Photo 890/1280/1290

Revision D

SHAFT, PULLEY, DRIVEN
FELT, D3.6
G-26

COMBINATION
GEAR, 12, 22.4
COMBINATION
GEAR, 17.19, 25.6

O-12

FELT, D3.6
O-12

O-12

O-12
Screw hole for
Motor Assy, ASF
*No oil
G-26

COMBINATION
GEAR, 14, 28
G-26

PULLEY, DRIVEN

Figure 6-6. Shaft, Pulley, Driven
SHAFT, A
SHAFT, C

MOUNTING
PLATE,
MOTOR, ASF

SHAFT, B
LEVER PLANET UNIT

FELT, D3.6

SET RING, D8.8
must fit in

Figure 6-7. Combination Gear, 12,22.4 & 14.28

MAINTENANCE

Overview

161

EPSON Stylus Photo 890/1280/1290

Revision D

ROLLE

PAPER GUIDE,

SHAFT, CR

G-26

Figure 6-10. Roller, PF

G-26

Figure 6-8. Groove on Roller, PF

CONTACT SPRING,
PAPER EJECT

G-26

G-26
G-26

Figure 6-11. Paper Guide, Front (6 spots)

Figure 6-9. Roller, Eject & Ground Spring, Eject

MAINTENANCE

Overview

162

EPSON Stylus Photo 890/1280/1290

Revision D

G-56
]

G-26

Approx. 3 cm
After applying G-56 on the

COMBINATION GEAR, 13.5,30
SHAFT

Approx. 3 cm

Move the Carriage to left to right.

shaft, rotate the shaft half
way.

Figure 6-13. Combination Gear, 13.5,30

G-26

Rotating the Shaft, to distribute the
grease evenly on the shaft.

Figure 6-12. Shaft, CR (EPSON Stylus Photo 1280/12909 Carriage
Unit)

MAINTENANCE

Overview

Figure 6-14. Frame, ASF; B

163

EPSON Stylus Photo 890/1280/1290

Revision D

Hook for the CR motor
linear scale
Screw
G-26

G-26

HOPPER ASSY
G-26

FRAME, ASF; B

Figure 6-16. Guide Plate, CR

Figure 6-15. Hopper Assy (right and left)

MAINTENANCE

Overview

164

CHAPTER

APPENDIX

EPSON Stylus PHOTO 890/1280/1290

Revision C

7.1.2 Connector Pin Assignment

7.1 Connector Summary
7.1.1 Connector Alignment

Table 7-1. Connector Assignment

This section provides information on connectors connecting main components of the
printer.

Parallel I/F
USB I/F

Printer Mechanism

Connector

Function

Table to refer to

CN1

Parallel interface connector

CN3

USB interface connector

CN5

PE sensor connector

Table 7-2

CN6

ASF sensor connector

Table 7-3

CN8

Printhead connector (including the CR encoder
input line)

Table 7-4

CN9

Printhead connector (including CSIC
communication and head temperature detection)

Table 7-5

CN11

Control panel connector

Table 7-6

CN12

PF encoder connector

Table 7-7

CN13

CR motor connector

Table 7-8

CN14

PF motor connector

Table 7-9

CN15

ASF/Pump Motor

Table 7-10

CN19

Power

Table 7-11

Print Head
(CSIC,CR Encoder)
appn01

Figure 7-1. Cable Connection

APPENDIX

Connector Summary

166

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-2. Connector Pin Assignment - CN5
Pin

Signal Name

I/O

GND

PEV

Table 7-4. Connector Pin Assignment - CN8

Function

Signal Name

I/O

PE signal

COM

Head drive pulse

−

GND

Ground

−

+5V

COM

Head drive pulse

GND

Ground

VHV

+42V power supply for nozzle
selector

GND

Ground

SEL

Command Selection

GND

Ground

VDD

+5V

LAT

Head data latch pulse output

GND

Ground

NCHG

Head NCHG

THM

Thermistor detect signal

SI1

Head data

SI2

Head data

SI3

Head data

SP signal

GND

Ground

ENA

CR encoder output A

VDD

+5V

ENB

CR encoder output B

GNB

Ground

Table 7-3. Connector Pin Assignment - CN6
Pin

Signal Name

I/O

ASF

ASF HP detection

GND

ASFV

+5V

APPENDIX

Function

Connector Summary

167

EPSON Stylus PHOTO 890/1280/1290

Revision C
Table 7-6. Connector Pin Assignment - CN11

Table 7-5. Connector Pin Assignment - CN9
Pin

Signal Name

I/O

Function

SI6

Head data

SI5

Head data

SI4

Head data

GND

Ground

SCK

GND

Head NCHG

COC

Signal Name

I/O

Function

SW1

Switch input

PSC

Power switch

SW0

Switch input

SW2

Switch input

Table 7-7. Connector Pin Assignment - CN12
Pin

Signal Name

I/O

Function

Ground

GND

Ground

Clock

ENB

Rotary encoder Phase B output

RXD

Ground

VCC

COB

SP signal

ENA

Rotary encoder Phase A output

TXD

Head data

GND

Ground

VDD3.3

Head data

GND

Head data

COM

Head data

Signal Name

I/O

GND

Head data

PF-A

PF motor Phase A

COM

Head data

PF-B

PF motor Phase B

GND

Ground

+5V

Table 7-8. Connector Pin Assignment - CN13
Function

Table 7-9. Connector Pin Assignment - CN14
Table 7-6. Connector Pin Assignment - CN11
Pin

Signal Name

I/O

SW2

Switch signal input

LED0

LED output

GND

Ground

VCC

+5V

LED3

LED output

APPENDIX

Function

Connector Summary

Signal Name

I/O

Function

CR-A

CR motor Phase A

CR-B

CR motor Phase B

168

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-10. Connector Pin Assignment - CN15
Function

7.1.3 EEPROM Address Map

Signal Name

I/O

ASF/Pump Motor Phase A

ASF/Pump Motor Phase B

ASF/Pump Motor Phase /A

Address

ASF/Pump Motor Phase /B

00H

This section provides the EEPROM address map.

Table 7-12. EEPROM Address Map
Explanation

Setting

QPIT
Settings

Factory
Settings

0FH

5AH

Pass word

Table 7-11. Connector Pin Assignment
Pin

Signal Name

I/O

+42V

+42V Power

+42V

+42V Power

GND

Ground

ESAVE

Energy saving mode

PSC

Secondary power ON/OFF

GND

Ground

GND

Ground

+5V

+5V Power

APPENDIX

Function

01H
02H

EEPROM mapping
revision

41H

03H

Reserved

00H

04H

Interface selection

0: Auto, 1: Parallel, 2: USB

00H

00H *2

05H

Interface time-out

0 to 255 (by second, value of 0
means 10 seconds)

0AH

06H

Compatibility speed

0: Fast, 1: Slow,
2: Special-1, 3: Special 2

00H

07H

ECP speed*a

0: Fast, 1: Slow

00H

08H

IEEE1284.4 for Parallel

0: Auto, 1: On, 2: Off

00H

01H

09H

IEEE1284.4 for USB

0: Auto, 1: On, 2: Off

00H

01H

0AH

1/F Control flags

bit1: ECP mode
(0=Off, 1=On)*b
bit0: IEEE1284 mode (0=On,
1=Off)*c

00H

0BH 0FH

Reserved

00H

10H 15H

CPSI pass word

00H

16H

Print direction control

0: Bi-D, 1: Uni-D, 2: Auto

02H

17H

CG table

08H: PC437, 0AH: PC850

00H

18H

Font

0: Courier

00H

Connector Summary

169

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-12. EEPROM Address Map (continued)
Explanation

Address

Setting

Table 7-12. EEPROM Address Map (continued)

QPIT
Settings

Factory
Settings

Address

00H

2BH

19H

Pitch

0: 10cpi

1AH

Auto LF, Network I/F
mode

bit1: Network I/F mode (0=Off,
1=On)
bit0: Auto line feed
(0=Off, 1=On)

00H

1BH

Check model control

bit7: Self test mode
bit6: Hex dump mode

00H

1CH 1FH

Reserved

00H

20H
21H

QPIT
Settings

Factory
Settings

Error Code

00H

2CH

Error Counter at Initial
Fills I/S

00H

2DH

CR Measurement Data

00H

2CH

PF Measurement Data

00H

2FH

Reserved

00H

78H

1244 to 44x360 (by 0.0706 (1/
360 inch))

1EH

F0H

1244 to 44x360 (by 0.0706 (1/
360 inch))

1EH

F0H

00H

Explanation

30H
Top margin
31H

Bi-D Adjustment for
MultiShot (Bk)

-72<=n<=+72
(by 0.00882mm(1/2880 inch)

00H

Bi-D Adjustment for
6plVSD (Bk)

-72<=n<=+72
(by 0.00882mm(1/2880 inch)

00H

32H
Bottom margin
33H

34H
Page length

Setting

42 to 44x360 (by 0.0706 (1/360
inch))

22H

Bi-D Adjustment for
4plVSD (Bk)

-72<=n<=+72
(by 0.00882mm(1/2880 inch)

00H

23H

Bi-D Adjustment for
MultiShot (Cl)

-72<=n<=+72
(by 0.00882mm(1/2880 inch)

00H

37H

24H

Bi-D Adjustment for
6plVSD (Cl)

-72<=n<=+72
(by 0.00882mm(1/2880 inch)

00H

38H3BH

Accumulate page
counter

by 1 page

00H

25H

Bi-D Adjustment for
4plVSD (Cl)

-72<=n<=+72
(by 0.00882mm(1/2880 inch)

00H

3CH3FH

Accumulate print pass

by 1 pass

00H

26H

1st Dot Position
Adjustment

-72<=n<=+72
(by 0.00882mm(1/2880 inch)

00H

40H

0FH

5AH

27H

Reserved

00H

28H

reserved for CR Phase
on Home

00H

29H

reserved for Paper
Sensor Adjust

00H

2AH

Roll paper flag

00H

35H
36H
Reserved

Password
41H

APPENDIX

bit1: Panel Load Mode
bit0: Rollpaper Mode

00H-

Connector Summary

170

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-12. EEPROM Address Map (continued)
Explanation

Address

42H

43H

Ink flag1

Ink flag2

44H

Setting
bit7:
bit6:
bit5:
bit4:
bit3:
bit2:
bit1:
bit0:

CSIC disable
Black one-time
Color one-time
Initial fill required
Reserved
Ink cleaning seq.
Black CL required
Color CL required

bit7: Reserved
bit6: Black 1st cartridge
bit5: YMC 1st cartridge
bit4: Black CSIC changed
bit3: YMC CSIC changed
bit2: YMC cartridge changed
and cleaned
bit1: Black cartridge changed
and cleaned
bit0: Black cartridge only
changed and cleaned

QPIT
Settings

Table 7-12. EEPROM Address Map (continued)
Factory
Settings

QPIT
Settings

Factory
Settings

00H

4EH

00H

4FH

00H

50H

00H

52H

00H

53H

00H

54H

00H

56H

00H

57H

00H

58H

00H

Address

Explanation

4CH
4DH

Setting

Ink counter Cc
00H

10H

51H
Ink counter Cm

55H
00H

Ink counter Clc

00H

59H
Ink counter Clm

00H

5AH

00H

5BH

00H

46H

00H

5CH

00H

47H

00H

5DH

00H

48H

00H

5EH

00H

5FH

00H

60H

00H

45H
Ink counter Cb

49H
Ink counter Cy
4AH
4BH

00H

Ink counter Rb0
61H
62H
Ink counter Rb80
63H

APPENDIX

Connector Summary

171

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-12. EEPROM Address Map (continued)

QPIT
Settings

Factory
Settings

00H

65H

00H

66H

00H

00H*2

00H

00H*2

00H

00H*2

80H

00H

00H*2

81H

00H

00H*3

82H

6DH

00H

00H*3

6EH

00H

00H*3

Explanation

Address
64H

Setting

Ink counter Ry0

Ink counter Ry80
67H
68H
CL time
69H
6AH
Power off time
6BH
6CH
Ink counter A0

6FH

Ink counter A80

00H

00H*3

70H

00H

71H

Accumulated printing
time

00H

72H

CSIC1_InkName1

00H

73H

CSIC2_InkName2

00H

76H

00H

77H

00H

74H
75H
Reserved

Address

Explanation

QPIT
Settings

Factory
Settings

7CH

Home out cleaning
counter

00H

7DH

Timer cleaning counter

00H

7EH

Bk change cleaning
counter

00H

7FH

Color change cleaning
counter

00H

0FH

5AH

Power unit select

00H

83H9FH

Reserved

00H

A0H

Head Actuator Rank ID
for VhN

+1<=n<=+201

00H

A1H

Head Actuator Rank ID
for VhM

+1<=n<=+201

00H

A2H

Head Actuator Rank ID
for VhL

+1<=n<=+201

00H

A3H

Head Actuator Rank ID
for VhU

+1<=n<=+201

00H

A4H

Head Actuator Rank ID
for VhM2

+1<=n<=+201

00H

A5H

Head Actuator Rank ID
for VhB

+1<=n<=+201

00H

A6H

Head Actuator Rank ID
for AR

00H

Password

78H

Cleaning KK counter

00H

79H

Cleaning 1 counter

00H

7AH

Cleaning 1 dash counter

00H

A7H

Microweave ID

7BH

Cleaning 2 counter

00H

A8H

Head Actuator Rank ID
for Iw_B

APPENDIX

Setting

Connector Summary

+30<=n<=+70

172

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-12. EEPROM Address Map (continued)
Setting

Table 7-12. EEPROM Address Map (continued)

QPIT
Settings

Factory
Settings

00H

Address

Explanation

A9H

Head Actuator Rank ID
for Iw_C

AAH

Head Actuator Rank ID
for Iw_M

+30<=n<=+70

00H

ABH

Head Actuator Rank ID
for Iw_Y

+30<=n<=+70

00H

ACH

Head Actuator Rank ID
for Iw_LC

+30<=n<=+70

00H

ADH

Head Actuator Rank ID
for Iw_LM

+30<=n<=+70

00H

+30<=n<=+70

Address

Explanation

Setting

D8H
D9H
DAH

Custom EEPROM sub
number

DBH

DCH

Panel mask function

bit7: Entry self-test
bit6: Entry Hex-Dump
bit5: Extended settings
bit4: Reserved

DDH

QPIT
Settings

Factory
Settings

00H

Reserved

AEH

00H

DEH

AFH

00H

DFH

Factory reserved

E0H

Market ID

E1H

Reserved

00H

E2H FFH

Model Name

00H

B0H

B1HBFH

CSIC printer name

Reserved

C0H

For Stylus PHOTO 890:
0Fh:R4C7260 (Japan)
8Fh:R4C7260 (World)
For Stylus PHOTO 1280/1290:
10h:R4C7260 (Japan)
90h:R4C7260 (World)

00H

0FH

5AH

0: World, 1: Japan,
2: Custom

*a: Enable or disable reverse transfer. (When disabled, ignore -SLIN signal.)
*b: BUSY signal delay time from fall-edge of a -STB signal. (Fast: Maximum 1MB/second,
Slow: Maximum 600KB/second)
*c: Select IEEE1284 transfer mode. (ECP or Nibble)

Password
C1H
C2H D3H

USB ID

00H

D4H D7H

Reserved

00H

APPENDIX

NOTE:
*1: Adjusted at factory.
*2: Initialized by the EEPROM reset of the special setting mode.
*3: Initialized by the Waste ink counter reset of the special setting mode.

Connector Summary

173

EPSON Stylus PHOTO 890/1280/1290

Revision C

7.2 Circuit Board Component Layout
C393MAIN CONTROL CIRCUIT BOARD

Component Side

Soldered Side

Figure 7-2. Component Layout - C393MAIN

APPENDIX

Circuit Board Component Layout

174

EPSON Stylus PHOTO 890/1280/1290

Revision C

C393MAIN-B CONTROL CIRCUIT BOARD

Component Side

Soldered Side

Figure 7-3. Component Layout - C393MAIN-B

APPENDIX

Circuit Board Component Layout

175

EPSON Stylus PHOTO 890/1280/1290

Revision C

C393MAIN-C CONTROL CIRCUIT BOARD

Component Side

Soldered Side

Figure 7-4. Component Layout - C393MAIN-C

APPENDIX

Circuit Board Component Layout

176

EPSON Stylus PHOTO 890/1280/1290

Revision C

C378PSB/PSE CIRCUIT BOARD

Figure 7-6. Component Layout - C378PSE

Figure 7-5. Component Layout - C378PSB

APPENDIX

Circuit Board Component Layout

177

EPSON Stylus PHOTO 890/1280/1290

Revision C

C393PNL CIRCUIT BOARD

Figure 7-7. Component Layout - C393PNL

APPENDIX

Circuit Board Component Layout

178

EPSON Stylus PHOTO 890/1280/1290

Revision C

7.3 Electrical Circuit Board Diagrams
See the following pages for the electrical circuit board diagrams below:

C393MAIN
C393MAIN-B
C393MAIN-C
C393PNL
C378PSB
C378PSE

APPENDIX

Electrical Circuit Board Diagrams

179

EPSON Stylus PHOTO 890/1280/1290

Revision C

7.4 Exploded Diagrams
7.4.1 Exploded Diagrams for Stylus PHOTO 890
See the following pages for exploded diagrams for Stylus PHOTO 890.

125

122

115

102

117

101

400
754

122

182
774

183

122
500

122

751

106

124
124

116
103

133

181

132

180

774
124
122

801

766
805

136

803

124

126

752

130
125

775

135

777
105

125

100
125

800

753

104

802

742

PM-880C/ EPSON STYLUS PHOTO 890

NO.1

Rev.01

450

10275

Figure 7-8. Stylus PHOTO 890 - 1

APPENDIX

Exploded Diagrams

186

EPSON Stylus PHOTO 890/1280/1290

Revision C

608

122

330

604
300
D

591
613

524

122

607
501

G
H

122
606

603

122

F
122

122

594

580

112

534

122
113
532

122

574

122
109
122

131

119

200

122
111

122

506

122
121

122

114

121
108

587
587

505

512

122
108
587

614

587
587

PM-880C/EPSON STYLUS PHOTO 890

NO.2

Rev.01

10275

119

Figure 7-9. Stylus PHOTO 890 - 2

APPENDIX

Exploded Diagrams

187

EPSON Stylus PHOTO 890/1280/1290

Revision C

759
706

587

758

757

558

501

756

557
762
704

761
760
551

551
548

J
762

609
587
548
605
551

545x5

761

551
548

612
644

748

564
604
700

705

513

550
549

548

550

551
548

550
550

573

549
546
550

587
568
569

551
548

550
549
550

553

550
549

550
549
550

506

552

547

550
H

575

577

567

575

554
565

560

555
612
587
588

588
566

589
571
587

572

PM-880C/EPSON STYLUS PHOTO 890

507

514
748

No.3

570

Rev.01

10275

Figure 7-10. Stylus PHOTO 890 - 3

APPENDIX

Exploded Diagrams

188

EPSON Stylus PHOTO 890/1280/1290

Revision C

610

587

526
525

587
521

518

510

517
528
527

559

587

610

528

(501)

537
522

610

639
590

536
515
516

530
611

619

511

587

619

641

535

502

531

645

587

533

538

520

626

504

622

587

530
579

531
544
544
542
544
542

587

620

582

623

542

586

628

592
627

529

628

I
540
544
542
544
542
544
542
544

541
556

544
543
599
542
544
542
544
539
542
544
542
544
542
544
542
544 542

587

625

585
593
531

578
612

765

119
531

616

618 621
587

PM-880C/ EPSON STYLUS PHOTO 890

587

624

508

587

519

509

637

587

No.4

Rev.01

10275

Figure 7-11. Stylus PHOTO 890 - 4

APPENDIX

Exploded Diagrams

189

EPSON Stylus PHOTO 890/1280/1290

Revision C

780 Without 747,748

711

709

712
713

714

708

764
581

747

703
763
707
740

710
748

755

782

737

736

739
721 728
738

726
723
720

736

727
718

735

K
739

737

729

730
746

745

716
745

715
717
718

724

721

731
733

781

746
719

735
734
720
732

723
722

724

725

PM-880C/ EPSON STYLUS PHOTO 890

No.5

Rev.01

10275

Figure 7-12. Stylus PHOTO 890 - 5

APPENDIX

Exploded Diagrams

190

EPSON Stylus PHOTO 890/1280/1290

Revision C

7.4.2 Exploded Diagrams for Stylus PHOTO 1280/1290
See the following pages for exploded diagrams for Stylus PHOTO 1280/1290.
122

125

115

125
102

117
125

182

101
110
183 for JPN

122
774
754
500

126
126

124
124
751

106

180
116

181

122

124

122
774

103

400 for EAI,EUL(120V),ETT

775

743

124

126
136

783

133
126

766

130

752

123
For EAI(220V),EUR, S.E.ASIA,
EAL,EKL
400

401

125
132
105

400

125

100

125
753

125

776
104
742
123

450

PM-3500C / EPSON STYLUS PHOTO 1290

No.1

Rev.01

10270

Figure 7-13. Stylus PHOTO 1280/1290 - 1

APPENDIX

Exploded Diagrams

191

EPSON Stylus PHOTO 890/1280/1290

Revision C

591

122

604

608

587
613

524
607

122

501

122

122
606

603

330

300

580

587

594

122
122

534

574

112
122

113

532

122
119
122
131
122

114

119

122

109

506

200

111

122
122

108

122
121

587

122

121

512

505

587

108

122
587

614

587

587
587

PM-3500C / EPSON STYLUS PHOTO 1290

No.2

Rev.01

10270

119

Figure 7-14. Stylus PHOTO 1280/1290 - 2

APPENDIX

Exploded Diagrams

192

EPSON Stylus PHOTO 890/1280/1290

Revision C

759

704

(501)

587

706

557

558
583

573

584

762

598

760
609
551

761

548

587

545
X5

762

551
548

550
549
550

605

551
548

705
550

761

549
612

550
549
550
550

629
769

550

513
568

549

551
548

552

549
550

569

604
560

553

550
549
550
550

(506)

700

551
548

550

575
567
577
575

548

550
549
550
550

587

564

551

549

554
550
549
550
550

547

555

565
507

587

562

514
629

612
587

561
566

589
571

588
630

587

563

572

PM-3500C / EPSON STYLUS PHOTO 1290 No.3

Rev.01

10270

570

Figure 7-15. Stylus PHOTO 1280/1290 - 3

APPENDIX

Exploded Diagrams

193

EPSON Stylus PHOTO 890/1280/1290

Revision C

587

610

(501)
588

587

559

510

526
525 521
518
528

J
590

636

522
523 517
528
527
610

537

587
634

536

502

633

535

635 546

587
611
587

638

546

549

???
511

515
619
628

530

619
628 504

529
516

632

587
538

544
542

641
587

544
542

542

544

541

542
544
542 544

543

544
542 544

542
544
542 544

544
542
544
542

620
533
587
530 556
585
593
531

544

540

542

612

543
542

542
544

587
582

587

541
544

542
544

542
544
542

623

531

544

626

622

503
544

520
592
627
579

586

539
542
544
544
542

599

618

119

624
531

612
765

625

578

587

519

616
542
544
542

621

587

544

PM-3500C / EPSON STYLUS PHOTO 1290 No.4

508

Rev.01

587

509
637

10270

Figure 7-16. Stylus PHOTO 1280/1290 - 4

APPENDIX

Exploded Diagrams

194

EPSON Stylus PHOTO 890/1280/1290

Revision C

780

711

709

712

714

713

708

764
749
747

703
750

763

758
740

707
710

736
748
739

781

703

701

737

738

721 728

703

741
736

726
727

703
739

735

701
720 730
746

723 718
729
745

717

716

701

737

715

745
721

718

724
731

782

746
733
735

719

734
720
732

723
722

724

725

PM-3500C / EPSON STYLUS PHOTO 1290

No.5

Rev.01

10270

Figure 7-17. Stylus PHOTO 1280/1290 - 5

APPENDIX

Exploded Diagrams

195

EPSON Stylus PHOTO 890/1280/1290

Revision C

7.5 Parts List

Table 7-13. Stylus PHOTO 890 Parts List
Code

7.5.1 Parts List for Stylus PHOTO 890
Table 7-13. Stylus PHOTO 890 Parts List
Code

Parts Name

126

C.B.S. SCREW

130

"BUTTON,CSIC"

131

"COVER,CABLE;B"

100

HOUSING;B

132

"LOCK,STACKER"

101

COVER ASSY.

133

"COMPRESSION SPRING,2.94"

102

PAPER SUPPORT;B

135

"BUTTON,PS;B"

103

STACKER ASSY.;C

136

OPTICAL TUBE

104

PANEL ASSY.

180

"LABEL,CAUTION;B"

105

"SHIELD PLATE,PANEL"

181

"LABEL,MODEL NAME;B"

106

"HOUSING,PANEL,LEFT;B"

184

"LABEL,ACCESSORY"

108

GROUNDING PLATE

200

"BOARD ASSY., MAIN"

109

"COVER,SHIELD PLATE,M/B,RIGHT"

300

"BOARD ASSY., POWER SUPPLY"

111

"COVER,CABLE"

330

HARNESS

112

"COVER,INLET,UPPER;B"

400

POWER CABLE ASSY.

113

"COVER,INLET,LOWER;B"

450

"BOARD ASSY.,PANEL"

114

"SHIELD PLATE,M/B"

500

PRINTER MECHANISM(ASP)M4T12-100

115

LOGO PLATE 10X40;C

501

"FRAME ASSY,LEFT;B"

116

"HOUSING,SUPPORT,RIGHT;B"

502

"MOTOR ASSY.,PF"

117

"HOUSING,SUPPORT,LEFT;B"

504

"COMBINATION GEAR,12,22.4"

119

FOOT

505

"FRAME,RIGHT,FRONT"

121

C.P.SCREW

506

"FRAME,UPPER"

122

C.B.S. SCREW

507

"MOTOR ASSY.,CR"

123

"C.B.(O) SCREW,4X5,F/ZG"

508

"PUMP,ASSY."

124

C.B.S. SCREW

509

CAP ASSY.

125

"C.B.P-TITE SCREW,3X8,F/ZN"

510

"FRAME,LOWER"

APPENDIX

Parts List

196

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-13. Stylus PHOTO 890 Parts List
Code

Table 7-13. Stylus PHOTO 890 Parts List

Parts Name

Code

Parts Name

511

"SHEET,PROTECT,INK"

537

"GROUNDING SPRING,PF"

512

"FRAME,FRONT"

538

"FRAME,PAPER EJECT"

513

"BUSHING,PARALLELISM ADJUST,LEFT"

539

"HOLDER,STAR WHEEL,RIGHT;B"

514

"BUSHING,PARALLELISM ADJUST,RIGHT"

540

"HOLDER,STAR WHEEL,LEFT;B"

515

"PAPER GUIDE,REAR"

541

"HOLDER,STARWHEEL,FRONT"

516

"ROLLER,PF"

542

"STARWHEEL ASSY.,8"

517

"COMPRESSION SPRING,5.85"

543

"STARHWEEL,8;B"

518

"BUSHING,12,LEFT"

544

"RODSPRING,STARWHEEL;B"

519

"TENSION BELT,PUMP TRANSMISSION"

545

"PAPER GUIDE,UPPER"

520

"SPUR GEAR,15.2"

546

"PAPER GUIDE,LEFT"

521

"SPACER,C-RING"

547

"PAPER GUIDE,RIGHT"

522

"SCALLOP SPRING PIN-AW,2X16,F/B"

548

"SHAFT,PAPER GUIDE,UPPER"

524

"SPUR GEAR,76"

549

"SHAFT,ROLLER,DRIVEN"

525

"SPACER,FASTEN,ROLLER,PF"

550

"ROLLER,DRIVEN"

526

"SPACER,FASTEN,ROLLER,PF;B"

551

"TORSION SPRING,117.6"

527

C-RING

552

"CIRCUIT ASSY,PE"

528

"PLANE WASHER,12.2X0.5X17"

553

"HOLDER,PE"

529

"ROLLER ASSY.,EJ"

554

"LEVER,PE"

530

"BUSHING,6"

555

"TORSION SPRING,0.22"

531

RETAINING RING

556

"LEVER,CR,LOCK"

532

"SPUR GEAR,28"

557

"GUIDE PLATE,CR"

533

"BUSHING,12,RIGHT"

558

"SHEET,CABLE"

534

"PLANE WASHER,4.1X0.5X6.5"

559

"SCREW,MOUNT,PF"

535

"PAPER GUIDE ASSY.,FRONT"

560

CARRIAGE

536

"GROUNDING WIRE,EJ"

564

"SLIDER,CR"

APPENDIX

Parts List

197

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-13. Stylus PHOTO 890 Parts List
Code

Table 7-13. Stylus PHOTO 890 Parts List

Parts Name

Code

Parts Name

565

TIMING BELT

593

"PLAIN WASHER,5.1X0.7X11,S/NA"

566

"SHAET,CR"

594

"PLAIN WASHER,10.7X0.5X15.5,L/NA"

567

"PULLEY,DRIVEN"

599

"FRAME,MIDDLE"

568

"HOLDER,PULLEY,DRIVEN"

603

"TAPE,D50"

569

"COMPRESSION SPRING,23.52"

604

"BOARD ASSY.,ENCODER"

570

"LEVER,PG;C"

605

"SCALE,CR"

571

"LEVER,PG,SUPPORT"

606

"SCALE,PF"

572

"TORSION SPRING,63.7"

607

"MOUNTING PLATE,SCALE"

573

"GROUNDING PLATE,HEAD"

608

"FFC,ENCODER"

574

"COMBINATION GEAR,13.5,30"

609

"EXTENSION SPRING,1.494"

575

"BUSHING,PULLEY,DRIVEN"

610

"MINI CRAMP,UAMS-05SN"

577

"SHAFT,PULLEY,DRIVEN"

611

"SCALLOP SPRING PIN-AW,2X10,F/B"

578

"EXTENSION SPRING,0.618"

612

"C.B.P-TITE SCREW,3X8,F/ZN"

579

"LEVER,PLANET"

613

"MOUNTING PLATE,BOARD ASSY."

580

"HARNESS,PE"

614

"FRAME,RIGHT,REAR"

581

"HARNESS,ASF"

616

"EXTENSION SPRING,7.37"

582

"SHAFT,SPUR GEAR,PLANET"

618

"LEVER ASSEMBLY,COMBINATION GEAR"

585

"U-TYPE SPRING,5.2X0.13X10,S/NA"

619

"SET RING,D8.8"

586

"COMBINATION GEAR,14,28"

620

"MOTOR ASSY,ASF"

587

C.B.S. SCREW

621

"P.W.,3.1X0.5X12,F/ZN"

588

C.P.SCREW

622

RETAINING RING

589

LEAF SPRING

623

"COMBINATION GEAR,17.19,25.6"

590

"PLAIN WASHER,3.3X0.5X8,F/UC"

624

"COMBINATION GEAR,12,22.92"

591

"C.B.P-TITE,2.5X5,F/ZN"

625

"LEVER,DE,LOCK"

592

"PLAIN WASHER,6.2*0.2*9,L/NA"

626

"MOUNTING PLATE,MOTOR,ASF"

APPENDIX

Parts List

198

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-13. Stylus PHOTO 890 Parts List
Code

Table 7-13. Stylus PHOTO 890 Parts List

Parts Name

Code

Parts Name

627

"COMPRESSION SPRIN,3.944"

720

"COMPRESSION SPRING,1.17"

628

"FERUTO,D3.6"

721

"EXTENSION SPRING,0.62"

637

"SHEET,INK STOPPER"

722

"LEVER,PAPERRETURN,RIGHT"

639

CUP SCREW

723

"EXTENSION SPRING,0.294"

641

"POROUS PAD,PAPER GUIDE,FRONT"

724

"ROLLER,LD,SUPPORT"

644

"+,BIND B-TITE SEMS W2,2.5X6,F/ZB"

725

"HOLDER,ROLLER,LD,SUPPORT,RIGHT"

645

"GROUNDING PLATE,PAPER GUIDE,FRONT"

726

"PAD ASSY.,LEFT"

700

PRINT HEAD

727

"LEVER,PAD,RELEASE,LEFT"

703

"C.B.P-TITE SCREW,3X6,F/ZN"

728

"HOLDER,EDGEGUIDE,LEFT"

704

"CABLE,HEAD"

729

"LEVER,PAPERRETURN,LEFT"

705

"HOLDER,CABLE"

730

"HOLDER, ROLLER,LD,SUPPORT,LEFT"

706

"SPACER,CABLE HEAD"

731

"ROLLER ASSY.,LD,LEFT"

707

"FRAME,ASF;B"

732

"ROLLER ASSY.,LD,RIGHT"

708

HOPPER

733

"COVER,ROLLER,LD,LEFT"

709

EDGE GUIDE;E

734

"COVER,ROLLER,LD,RIGHT"

710

CORK

735

"COMPRESSION SPRING,1.961"

711

"SLIDER,EDGEGUIDE"

736

"LEVER,FASTEN,EDGEGUIDE;B"

712

"COMPRESSION SPRING,3.23"

737

"EXTENSION SPRING,0.088"

713

"PAD,BREAK,EDGE GUIDE"

738

"SHAFT,ROLLER,LD"

714

"REINFORCEMENT PLATE,HOPPER"

739

"LEVER,HOPPER,RELEASE"

715

"SPUR GEAR,32"

740

"WHEEL,DETECT"

716

"PAD ASSY.,RIGHT"

742

"C.C.P-TITE SCREW,3X8,F/ZN"

717

"LEVER,PAD,RELEASE,RIGHT"

745

"SHEET,PAPERFEED"

718

"ROD SPRING,HOLDER,PAD"

746

"HOLDER,SHEET,PAPERFEED"

719

"HOLDER,EDGEGUIDE,RIGHT"

747

"SHAFT,MOUNT,CR"

APPENDIX

Parts List

199

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-13. Stylus PHOTO 890 Parts List
Code

Table 7-13. Stylus PHOTO 890 Parts List

Parts Name

Code

Parts Name

748

"C.B.S-TITE(P4),3X6,F/ZN"

802

"FRAME,ROLL PAPER,RIGHT"

751

"PAPER GUIDE,LOWER"

803

"STOPPER,ROLL PAPER"

752

"POROUS PAD,INK EJECT,LARGE;B"

805

"SHEET,ROLL PAPER"

753

"TRAY,POROUS PAD"

754

"SPACER,TRAY"

755

"BUSHING,FASTEN,SHAFT,LEFT"

756

"PAPER SUPPORT,SUUPPORT,UPPER"

757

"HOLDER,PAPER SUPPORT,SUPPORT,UPPER"

758

"EXTENSION SPRING,0.29"

759

"COVER,CARTRIDGE,BK;B"

760

"COVER,CARTRIDGE,C;B"

761

"PLAT SPRING COVER,CARTRIDGE"

762

"COVER,PLAT SPRING,CARTRIDGE"

763

"DETECTOR,HP;E"

764

CORK;B

765

"CLEANER HEAD,ASP"

766

"POROUS PAD,INK EJECT,SMALL;B"

774

"DUMPER,SUPPORT;B"

775

"POROUS PAD,FRAME,MIDDLE"

777

"POROUS PAD,INK EJECT,PUMP;S"

780

ASF UNIT

781

"PAPER LOADING ASSY.,RIGHT"

782

"PAPER LOADING ASSY.,LEFT"

800

"MOUNTING PLATE,ROLL PAPER,HOLDER"

801

"FRAME,ROLL PAPER,LEFT"

APPENDIX

Parts List

200

EPSON Stylus PHOTO 890/1280/1290

Revision C

7.5.2 Parts List for Stylus PHOTO 1280/1290

Table 7-14. Stylus PHOTO 1280/1290 Parts List
Code

Parts Name

130

BUTTON;C

100

HOUSING

131

"COVER,CABLE;B"

101

"COVER,PRINTER"

132

"BUTTON,PS;B"

102

"PAPER SUPPOT,ASSY"

136

OPTICAL TUBE

103

STACKER ASSY.;C

133

"BUTTON,CSIC"

104

"HOUSING,PANEL,RIGHT"

180

"LABEL,CAUTION;B"

105

"SHIELD PLATE,PANEL"

181

"LABEL,MODEL NAME;C"

106

"PANEL ASSY.,LEFT;C"

182

"LABEL,PAPER SET;B"

108

GROUNDING PLATE

200

"BOARD ASSY., MAIN"

109

"COVER,SHIELD PLATE,M/B,RIGHT"

300

"BOARD ASSY., POWER SUPPLY"

110

"COVER,PRINTER,SUPPORT"

330

HARNESS

111

"COVER,CABLE"

400

POWER CABLE ASSY.

112

"COVER,INLET,UPPER;B"

450

"BOARD ASSY.,PANEL"

113

"COVER,INLET,LOWER;B"

500

"PRINTER MECHANISM(ASP),M4S61-100"

114

"SHIELD PLATE,M/B"

501

"FRAME ASSY.,LEFT;B"

115

LOGO PLATE 10X40;C

502

"MOTOR ASSY.,PF"

116

"HOUSING,SUPPORT,RIGHT;C"

503

"GROUNDING PLATE,PAPER GUIDE,FRONT"

117

"HOUSING,SUPPORT,LEFT;C"

504

"COMBINATION GEAR,12,22.4"

119

FOOT

505

"FRAME,RIGHT,FRONT"

121

C.P.SCREW

506

"FRAME,UPPER"

122

C.B.S. SCREW

507

"MOTOR ASSY.,CR"

123

"C.B.(O) SCREW,4X5,F/ZG"

508

"PUMP,ASSY."

124

C.B.S. SCREW

509

CAP ASSY.

125

"C.B.P-TITE SCREW,3X8,F/ZN"

510

"FRAME,LOWER"

126

C.B.S. SCREW

511

"SHEET,PROTECT,INK"

APPENDIX

Parts List

201

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-14. Stylus PHOTO 1280/1290 Parts List
Code

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Parts Name

Code

Parts Name

512

"FRAME,FRONT"

537

"GROUNDING SPRING,PF"

513

"BUSHING,PARALLELISM ADJUST,LEFT"

537

"GROUNDING SPRING,PF"

514

"BUSHING,PARALLELISM ADJUST,RIGHT"

538

"FRAME,PAPER EJECT;B"

515

"PAPER GUIDE,REAR"

539

"HOLDER,STAR WHEEL,RIGHT;B"

516

"ROLLER,PF"

540

"HOLDER,STAR WHEEL,LEFT;B"

517

"COMPRESSION SPRING,5.86"

541

"HOLDER,STARWHEEL,FRONT"

518

"BUSHING,12,LEFT"

542

"STAR WHEEL,8;G"

519

"TENSION BELT,PUMP TRANSMISSION"

543

"STARHWEEL,8;B"

520

"SPUR GEAR,15.2"

544

"RODSPRING,STARWHEEL;B"

521

"SPACER,C-RING"

545

"PAPER GUIDE,UPPER"

522

"SCALLOP SPRING PIN-AW,2X16,F/B"

546

"ROLLER,DRIVEN"

523

"SLEEVE,ROLOR,PF"

547

"PAPER GUIDE,RIGHT"

524

"SPUR GEAR,76"

548

"SHAFT,PAPER GUIDE,UPPER"

525

"SPACER,FASTEN,ROLLER,PF"

549

"SHAFT,ROLLER,DRIVEN"

526

"SPACER,FASTEN,ROLLER,PF;B"

550

"ROLLER,DRIVEN;D"

527

C-RING

551

"TORSION SPRING,117.6"

528

"PLANE WASHER,12.2X0.5X17"

552

"CIRCUIT ASSY,PE"

529

"ROLLER ASSY.,EJECT OUT"

553

"HOLDER,PE"

530

"BUSHING,6"

554

"LEVER,PE"

531

RETAINING RING

555

"TORSION SPRING,0.22"

532

"SPUR GEAR,28"

556

"LEVER,CR,LOCK"

533

"BUSHING,12,RIGHT"

557

"GUIDE PLATE,CR"

534

"PLANE WASHER,4.1X0.5X6.5"

558

"SHEET,CABLE"

535

"PAPER GUIDE ASSY.,FRONT"

559

"SCREW,MOUNT,PF"

536

"GROUNDING WIRE,EJ"

560

CARRIAGE

APPENDIX

Parts List

202

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-14. Stylus PHOTO 1280/1290 Parts List
Code

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Parts Name

Code

Parts Name

561

CUP SCREW

588

C.P.SCREW

562

"GROUNDING PLATE,HEAD"

589

LEAF SPRING

563

OIL PAD

590

"PLAIN WASHER,3.3X0.5X8,F/UC"

564

"SLIDER,CR"

591

"C.B.P-TITE,2.5X5,F/ZN"

565

TIMING BELT

592

"PLAIN WASHER,6.2*0.2*9,L/NA"

566

"SHAFT ASSY.,CR,GUIDE"

593

"PLAIN WASHER,5.1X0.7X11,S/NA"

567

"PULLEY,DRIVEN"

594

"PLAIN WASHER,10.7X0.5X15.5,L/NA"

568

"HOLDER,PULLEY,DRIVEN"

598

"EXTENSION SPRING,0.29"

569

"COMPRESSION SPRING,23.52"

599

"FRAME,MIDDLE"

570

"LEVER,PG;B"

603

"TAPE,D50"

571

"LEVER,PG,SUPPORT"

604

"BOARD ASSY.,ENCODER"

572

"TORSION SPRING,63.7"

605

"SCALE,CR"

573

"HOLDER,PAPER SUPPORT,SUPPORT,UPPER"

606

"SCALE,PF"

574

"COMBINATION GEAR,13.5,30"

607

"MOUNTING PLATE,SCALE"

575

"BUSHING,PULLEY,DRIVEN"

608

"FFC,ENCODER"

577

"SHAFT,PULLEY,DRIVEN"

609

"EXTENSION SPRING,1.494"

578

"EXTENSION SPRING,0.618"

610

"MINI CRAMP,UAMS-05SN"

579

"LEVER,PLANET"

611

"SCALLOP SPRING PIN-AW,2X10,F/B"

580

"HARNESS,PE"

612

"C.B.P-TITE SCREW,3X8,F/ZN"

582

"SHAFT,SPUR GEAR,PLANET"

613

"MOUNTING PLATE,BOARD ASSY."

583

"PAPER SUPPORT,SUPPORT,UPPER,LEFT;B"

614

"FRAME,RIGHT,REAR"

584

"PAPER SUPPORT,SUUPPORT,UPPER"

616

"EXTENSION SPRING,7.37"

585

"U-TYPE SPRING,5.2X0.13X10,S/NA"

618

"LEVER ASSEMBLY,COMBINATION GEAR"

586

"COMBINATION GEAR,14,28"

619

"SET RING,D8.8"

587

C.B.S. SCREW

620

"MOTOR ASSY,ASF"

APPENDIX

Parts List

203

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-14. Stylus PHOTO 1280/1290 Parts List
Code

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Parts Name

Code

Parts Name

621

"P.W.,3.1X0.5X12,F/ZN"

708

HOPPER;C

622

RETAINING RING

709

EDGE GUIDE;E

623

"COMBINATION GEAR,17.19,25.6"

710

CORK

624

"COMBINATION GEAR,12,22.92"

711

"SLIDER,EDGEGUIDE"

625

"LEVER,DE,LOCK"

712

"COMPRESSION SPRING,3.23"

626

"MOUNTING PLATE,MOTOR,ASF"

713

"PAD,BREAK,EDGE GUIDE"

627

"COMPRESSION SPRIN,3.944"

714

"SUPPORT PLATE,HOPPER;B"

628

"FERUTO,D3.6"

715

"SPUR GEAR,32"

629

"C.B.S-TITE(P4),3X6,F/ZN"

716

"PAD ASSY.,RIGHT"

630

"PLANE WASHER,4.5X0.5X8,L/NA"

717

"LEVER,PAD,RELEASE,RIGHT"

632

"HOLDER,STARWHEEL,SUPPORT;B"

718

"ROD SPRING,HOLDER,PAD"

633

"BUSHU,ROLLER PF,SUPPORT"

719

"HOLDER,EDGEGUIDE,RIGHT"

634

"LEVER,ROLLER PF,SUPPORT"

720

"COMPRESSION SPRING,1.17"

635

"MOUNTIN PLATE,LEVER,ROLLER PF,SUPPORT"

721

"EXTENSION SPRING,0.62"

636

"EXTENSION SPRING,10.1"

722

"LEVER,PAPERRETURN,RIGHT"

637

"SHEET,INK STOPPER"

723

"EXTENSION SPRING,0.294"

638

"HOLDER,ROLLER PF,SUPPORT"

724

"ROLLER,LD,SUPPORT"

641

"POROUS PAD,PAPER GUIDE,FRONT"

725

"HOLDER,ROLLER,LD,SUPPORT,RIGHT"

700

PRINT HEAD

726

"PAD ASSY.,LEFT"

701

RETAINING RING

727

"LEVER,PAD,RELEASE,LEFT"

703

"C.B.P-TITE SCREW,3X6,F/ZN"

728

"HOLDER,EDGEGUIDE,LEFT"

704

"CABLE,HEAD"

729

"LEVER,PAPERRETURN,LEFT"

705

"HOLDER,CABLE"

730

"HOLDER, ROLLER,LD,SUPPORT,LEFT"

706

"SPACER,CABLE HEAD"

731

"ROLLER ASSY,LD,LEFT"

707

"FRAME,ASF"

732

"ROLLER ASSY,LD,RIGHT"

APPENDIX

Parts List

204

EPSON Stylus PHOTO 890/1280/1290

Revision C

Table 7-14. Stylus PHOTO 1280/1290 Parts List
Code

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Parts Name

Code

Parts Name

733

"COVER,ROLLER,LD,LEFT"

762

"COVER,PLAT SPRING,CARTRIDGE"

734

"COVER,ROLLER,LD,RIGHT"

763

"DETECTOR,HP;E"

735

"COMPRESSION SPRING,1.961"

764

CORK;B

736

"LEVER,FASTEN,EDGEGUIDE;B"

765

"CLEANER HEAD,ASP"

737

"EXTENSION SPRING,0.088"

766

"POLUS PAD,SMALL"

738

"SHAFT,ROLLER,LD"

769

"+,BIND B-TITE SEMS W2,2.5X6,F/ZB"

739

"LEVER,HOPPER,RELEASE"

774

"DUMPER,SUPPORT;B"

740

"WHEEL,DETECT"

775

"SEAT,PAPER EJECT"

741

"STRENGTHEN PLATE,FRAME,ASF"

776

"POROUS PAD,INK EJECT,PUMP;S"

742

"C.C.P-TITE SCREW,3X8,F/ZN"

780

ASF ASSY.;D

743

"POLUS PAD,FL"

781

"PAPER LOADING ASSY.,LEFT"

745

"SHEET,PAPERFEED"

782

"PAPER LOADING ASSY.,RIGHT"

746

"HOLDER,SHEET,PAPERFEED"

783

"TRAY ASSEMBLY,POROUS PAD"

747

"SHAFT,MOUNT,CR"

800

"MOUNTING PLATE,ROLL PAPER,HOLDER"

748

"C.B.S-TITE(P4),3X6,F/ZN"

801

"FRAME,ROLL PAPER,LEFT"

749

"HARNESS,ASF"

802

"FRAME,ROLL PAPER,RIGHT"

750

"PAPER SUPPORT,HOPPER"

803

"STOPPER,ROLL PAPER"

751

"PAPER GUIDE,LOWER"

805

"SHEET,ROLL PAPER"

752

"POLUS PAD,LARGE"

753

"TRAY,POROUS PAD"

754

"SPACER,TRAY"

758

"EXTENSION SPRING,0.29"

759

"COVER,CARTRIDGE,BK;B"

760

"COVER,CARTRIDGE,C;B"

761

"PLAT SPRING COVER,CARTRIDGE"

APPENDIX

Parts List

205

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Title                           : Epson Stylus Photo 890, 1280, 1290 - Service Manual. www.s-manuals.com.
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